Mermaid Princess Cake

By Callie  

Emily has always been clear about her position on mermaids: they are not regular mermaids, they are mermaid royalty. Crowns are non-negotiable. Gold is required. So when she turned eight and told me she wanted a mermaid princess cake – specifically with a crown, scales, and gold seashells, as if she had been mentally designing it for months, which knowing Emily she probably had – I knew this was going to be one of those cakes I’d be proud of for a long time.

The mermaid princess cake is the most regal version of the mermaid cakes in my collection. Where the beach cake is playful and summery, and the candy cake is joyfully exuberant, this one is genuinely elegant. The lavender fondant scales applied in overlapping rows up the sides of the cake look intricate and almost architectural. The gold fondant seashells catch the light beautifully. The gold crown sitting on top – made a day ahead so it holds its shape perfectly – gives the whole cake a sense of occasion that makes the birthday girl feel genuinely special.

The technique of creating the mermaid scales is the most distinctive skill in this recipe and it’s the one I’ll spend the most time explaining because it’s what makes this cake look so impressive. Once you understand the method – starting at the bottom, overlapping each row upward like real fish scales – it goes faster than you’d expect and the result is consistently beautiful. I’ve made this cake three times now and each time it comes out looking more accomplished than the last.

This is a Project Recipe – the crown needs to dry overnight and the scale work takes patience – but I promise it’s completely approachable and deeply worth the effort. If you love the idea of a full mermaid dessert spread, this cake pairs beautifully with the Mermaid Candy Cake for a dessert table that covers both the whimsical and the regal ends of the mermaid spectrum.

Why You Will Love This Mermaid Princess Cake

• The lavender fondant scales look genuinely breathtaking. Overlapping fondant circles covering the entire side of the cake creates a textured, dimensional surface that looks incredibly detailed and professional. The technique is more methodical than difficult and produces a result that impresses everyone who sees it.
• The gold crown is a show-stopper on its own. A fondant crown painted with gold edible luster dust sitting on top of a lavender and teal cake creates an immediate visual statement. It says “this is not just a birthday cake, this is a royal occasion,” and the birthday girl will feel every bit of that.
• The regal color palette sets it apart. Lavender, teal, and gold is a combination that feels genuinely luxurious rather than just fun. It works beautifully for children’s parties and sophisticated enough for an adult who loves the mermaid aesthetic – a genuinely versatile palette.
• Three fluffy, moist vanilla layers inside. The three-layer construction gives height and presence to the finished cake, and the ombre lavender-to-teal buttercream between and around the layers creates a beautiful gradient when the cake is cut as well as on the outside.
• Make-ahead friendly at every stage. The crown dries overnight and keeps for days. The cake layers can be baked ahead and frozen. The buttercream can be made three days in advance. The scale work can be done the day before the party. Nothing about this cake needs to be rushed.
• A genuine skill-builder for cake decorating. The mermaid scale technique, the fondant crown construction, and the gold luster dust painting are all skills that transfer directly to other cake projects. Make this cake and you’ll approach your next creative cake with significantly more confidence.
• Customizable for any princess or royal theme. Change the gold to silver for a winter ice queen version. Switch the lavender to rose gold for a different feel. Add a fondant tiara instead of a crown for a different silhouette. The technique and structure accommodate almost any variation while maintaining the same sense of elegance.

Mermaid Princess Cake Ingredients

Cake Layers

• 2 1/2 cups all-purpose flour (or gluten-free all-purpose blend)
• 2 1/2 teaspoons baking powder
• 1/2 teaspoon salt
• 1 cup unsalted butter, room temperature
• 2 cups granulated sugar
• 4 large eggs, room temperature
• 1 tablespoon vanilla extract
• 1 cup whole milk (or almond or oat milk for dairy-free), room temperature

Ombre Buttercream Frosting

• 1 1/2 cups unsalted butter, room temperature
• 4 cups powdered sugar, sifted
• 2 teaspoons vanilla extract
• 2-3 tablespoons heavy cream (or non-dairy milk)
• Lavender and teal gel food coloring

Fondant Decorations

• Fondant in lavender, teal, and gold (or white fondant tinted with gel colors)
• Gold edible paint or gold luster dust mixed with a few drops of clear extract
• Gold sugar pearls or edible gold glitter
• Edible glue or a tiny amount of water for attaching fondant pieces
• Cornstarch for dusting the work surface
• Optional: fondant mermaid tail mold for additional decorations

Notes And Substitutions

Butter – both in the cake and frosting: Room temperature butter is essential at every stage of this recipe. For the cake batter, it needs to cream properly with the sugar to build the airy structure that produces a light, tender crumb. For the buttercream, room-temperature butter beats to that perfectly smooth, stable consistency needed for the ombre decoration and for holding the fondant scale pieces in place. Test readiness by pressing a finger into the butter – it should indent easily and feel soft throughout, not melting or greasy on the surface. If you’re in a rush, cube the butter and let it warm for 20 minutes on the counter rather than trying to microwave it to room temperature, which tends to partially melt the outside while leaving the center cold.

Gel food coloring for both the buttercream and fondant: For the lavender buttercream, use a purple gel with just a hint of pink – Americolor Electric Purple mixed with a drop of Soft Pink gives a beautiful true lavender. For the teal, start with turquoise and add a small amount of green. Always add gel color gradually and mix thoroughly between additions – it’s far easier to deepen a color than to correct one that’s gone too dark. For the gold fondant, you have two options: purchase gold-colored pre-made fondant from a specialty baking store, or tint white fondant with golden yellow gel coloring and then paint the finished pieces with gold edible luster dust mixed with a few drops of vodka or clear vanilla extract. The painted luster dust method gives a more genuine metallic gold finish than tinted fondant alone.

Gold edible luster dust: This is the ingredient that transforms the crown and seashells from golden-yellow to genuinely shimmering metallic gold. It’s sold at specialty baking supply stores and online under brand names like Rainbow Dust or Wilton Color Dust. Mix a small pinch with 3-4 drops of vodka or clear vanilla extract to make a paintable, metallic gold paste. The alcohol evaporates quickly after application, leaving behind a dry, brilliant gold finish. Applied to the dried fondant crown with a small food-safe brush in smooth, confident strokes, the result looks like actual gilded gold.

Lavender fondant for the scales: The scales are the most prominent decoration and they need to be the right thickness and the right consistency to stay put once applied. Roll fondant to approximately 2mm thickness – thin enough to look delicate but substantial enough to hold its cut shape without tearing. If you’re working in a warm kitchen, the fondant can become too soft and the circles can distort as you try to apply them. Keep a small pile of cornstarch nearby and dust your hands and surface lightly as needed. Working in batches – cutting 20-30 circles, applying them, then cutting more – means the fondant stays fresher and more workable throughout the process.

Callie’s Kitchen Note: Make the gold fondant crown at least one full day before you plan to assemble the cake – two days is even better. The crown is the most structurally demanding piece of this cake because it needs to stand upright on top without bending or drooping. Freshly made fondant is still soft and pliable and won’t hold a vertical shape. Dried overnight, it becomes firm and rigid and sits perfectly straight on top of the finished cake. I dry mine propped up slightly with crumpled parchment paper underneath the points to hold the crown shape while it firms. Take this shortcut and the crown placement on day two is effortless.

How To Make The Mermaid Princess Cake

The Two-Day Build Plan

This is a Project Recipe and the two-day approach is not just recommended – it’s genuinely the right way to approach it for the best results. Day One covers baking the cake layers and making the gold crown and any other fondant elements that need drying time. Day Two covers the buttercream, assembly, frosting, and the scale decoration work. The second day’s work is the most creatively satisfying and goes significantly more smoothly when everything is properly prepared and cooled from the day before.

1- Bake The Three Cake Layers (Day One)

Preheat your oven to 350F (175C). Grease three 8-inch round cake pans, line the bottoms with parchment paper circles, and grease the parchment. In a medium bowl, whisk together the flour, baking powder, and salt until evenly combined.

In a large bowl or stand mixer, beat the room-temperature butter and sugar on medium-high speed for 5 full minutes until the mixture is very pale, dramatically increased in volume, and genuinely fluffy. This is the creaming step – it’s building the air network that makes the difference between a light, tender cake and a dense one.

Divide the batter evenly among the three prepared pans and smooth the tops. Bake for 25-30 minutes until a toothpick inserted into the center of each layer comes out clean or with just a few dry crumbs. Cool in pans for 10 minutes, then turn out and cool completely on a wire rack before wrapping in plastic wrap and refrigerating overnight.

2- Make The Gold Crown (Day One)

Why The Crown Must Be Made A Day Ahead

Fondant crowns need to dry until fully rigid before being placed on a cake. A crown made from fresh fondant is too pliable to hold its shape upright – the points droop, the sides bow outward, and it looks deflated rather than regal. Given 24 hours of air-drying time, the fondant sets completely firm and the crown stands perfectly straight and holds its pointed shape without any support.

Roll the gold fondant to approximately 3mm thickness on a surface lightly dusted with cornstarch. Cut a long rectangle roughly 10 inches wide and 3 inches tall. Using a sharp knife or small fondant cutters, cut a zigzag or pointed crown pattern along the top edge – the traditional crown shape with 5-7 pointed peaks works beautifully. Score a very light vertical line at the center point if you want to roll it into a circle and join the ends, or leave it flat for a flatter crown that sits more like a tiara across the top of the cake.

Transfer the cut crown to a piece of parchment paper and prop the points upright with small pieces of crumpled parchment underneath to maintain the shape while drying. Let it dry at room temperature for a full 24 hours. The next day, mix a pinch of gold luster dust with a few drops of clear extract and paint the entire surface with a food-safe brush in smooth, even strokes until fully covered in shimmering metallic gold. Let the paint dry for 30 minutes before handling.

3- Make The Gold Seashells And Accents (Day One)

Using gold fondant (tinted yellow-gold or pre-colored), press small oval pieces into seashell shapes using a silicone mold or by hand. For hand-shaped shells, flatten a small ball of fondant into an oval and use a toothpick to press radiating lines from one narrow end, fanning outward like a fan shell. Make in varying sizes – larger ones for the base of the cake and smaller accent pieces for the upper sides. Let dry on parchment overnight alongside the crown, then paint with gold luster dust the next morning.

Callie’s Kitchen Note: I made the mistake the first time of adding too much luster dust powder to too little liquid when making the gold paint, which gave me a thick, globby mixture that went on unevenly and dried in streaks. The right consistency is thin and fluid – like watercolor paint – not thick and paste-like. Start with 3-4 drops of clear extract and add luster dust gradually, stirring until the mixture flows easily off the brush. Multiple thin coats of gold paint build up to a brilliant metallic finish far more beautifully than one thick application. Let each coat dry for a few minutes before applying the next.

4- Make The Ombre Buttercream (Day Two)

Beat the room-temperature butter on medium-high speed for 4 minutes until pale and fluffy before any sugar is added. Add the sifted powdered sugar one cup at a time on low speed, waiting for full incorporation between additions. Add the vanilla extract and heavy cream and beat on high for 3-4 minutes until very light and airy. Taste and adjust sweetness with a little more cream if needed to balance.

Divide the buttercream into two portions – slightly more in one bowl than the other. Tint the larger portion lavender with purple and a tiny touch of pink gel coloring. Tint the smaller portion teal. Keep both covered with plastic wrap pressed directly onto the surface until you’re ready to frost.

5- Assemble And Frost The Cake

Level each cake layer if they’ve domed in the center – a serrated knife held horizontally at the lowest point of the dome, cut through with a gentle sawing motion. Place the first layer on a cake board. Spread a generous even layer of lavender buttercream over the top, reaching to the edges. Add the second layer and repeat. Add the third layer flat side up. Apply a thin, even crumb coat over the entire exterior of the cake and refrigerate for 20 minutes until firm and dry.

Apply the final ombre frosting in two horizontal bands – lavender from the base up to roughly the midpoint, teal from the midpoint to the top. Use a bench scraper held vertically against the side of the cake and rotated slowly to blend the colors at the transition point into a smooth, gradient effect. The finished frosted cake should have a beautiful lavender-to-teal gradient flowing from bottom to top. Smooth the top surface with an offset spatula. Refrigerate for 30 minutes before beginning the scale work.

6- Apply The Mermaid Scales

Create Perfect Overlapping Mermaid Scales

This is the technique that makes the mermaid princess cake so distinctive and it’s more methodical than difficult once you understand the principle. Work on a surface dusted lightly with cornstarch. Roll lavender fondant to approximately 2mm thickness and use a round cutter (a small cookie cutter or the end of a piping tip works perfectly) to cut circles approximately 1 to 1.5 inches in diameter. Cut a large batch – 30-40 circles – before starting to apply so you can work continuously without stopping to roll more fondant.

Start at the very bottom edge of the cake. Press the first circle of fondant flat against the side of the cold cake – the soft buttercream acts as adhesive. Work in a horizontal row, overlapping each circle slightly with the previous one, all the way around the base. For the second row, position each circle so it sits centered between two circles in the row below and overlaps the top edge of those bottom-row circles. This offset, overlapping pattern is exactly what creates the scale effect – each row’s circles partially cover the top of the previous row while showing the lower portion, just like real fish scales.

Continue row by row, working upward from the base toward the top of the cake. Each new row centers over the gaps of the row below. The scale pattern builds rhythmically and quickly once you find the visual logic of it. Don’t worry about perfect uniformity – slight variations in size and overlap actually look more natural and more beautiful than mechanical precision. Cover the entire side of the cake in scales, working up to about two-thirds of the height, leaving the top third for the clean ombre frosting to show and where the crown and seashells will be placed.

Callie’s Kitchen Note: Keep the cake cold in the fridge while you’re working on the scales – take it out, apply 2-3 rows of scales, then return it to the fridge for 10 minutes while you cut the next batch of circles. This sounds slow but it makes a real difference. Warm frosting means the fondant circles slip downward as you apply them rather than holding their position. Cold frosting grabs the fondant circles immediately and holds them firmly in place. I started doing this on my second scale cake and the difference in how neatly and quickly the work went was genuinely significant.

7- Add The Seashells And Finish

Press the dried gold seashell pieces against the frosting on the upper portion of the cake, above the scale rows. Use a tiny dot of edible glue or a small amount of fresh buttercream behind each piece as adhesive. Arrange them in clusters at different heights for a naturally scattered effect rather than a rigid row. Scatter gold sugar pearls around the base of the cake and at the junction between the scale rows and the upper frosting. Dust a light application of gold edible glitter over the scale section for shimmer.

Position the fully dried and painted gold crown at the center top of the cake, pressing it very slightly into the soft buttercream so it stands straight. If it needs additional support, press two thin skewers into the cake at slight angles behind the crown as a backstop. A small ring of gold sugar pearls around the base of the crown anchors it visually and adds a finishing touch. Refrigerate the decorated cake for at least one hour before serving.

Common Mistakes To Avoid

Not Drying The Crown Overnight

A freshly made fondant crown is the single most fragile element of this cake. It’s warm, pliable, and will begin to sag and droop almost immediately when stood upright on the cake. The overnight drying step is not optional – it transforms the crown from a soft piece of colored dough into a rigid, structural element that stands confidently and looks genuinely impressive. Make the crown 24-48 hours before you need it. Store it in a dry spot at room temperature, not in the fridge where humidity can soften it, and handle it carefully once dried as it can crack if dropped.

Starting The Scales At The Wrong Height

Begin the first row of scales at the very base of the cake, as close to the cake board as possible. Starting a row or two up from the base leaves a gap of plain frosting at the bottom that looks unintentional and slightly unfinished rather than designed. The first row should essentially sit on the cake board. This gives the scale design a clean, grounded starting point and the completed design looks much more intentional and polished when the scales extend all the way to the base.

Applying Scales To Warm Frosting

Warm buttercream doesn’t hold fondant circles in place – they slide down the sides of the cake as you apply the next one, dragging the previous ones out of alignment. The 30-minute refrigeration after the final frosting application is essential before the scale work begins. And as mentioned in the Kitchen Note, returning the cake to the fridge every few rows during the scale application keeps the frosting cold and grippy throughout the process. Cold frosting, beautifully placed scales. Warm frosting, frustration.

Cutting Fondant Circles That Are Too Thin

Fondant rolled thinner than 2mm tears easily when you try to peel the circles off the work surface and press them onto the cake. Pieces that thin also don’t have enough substance to show the pleasing slight texture of the overlapping layers – they look flat rather than dimensional. Roll to a consistent 2mm thickness – about the thickness of two stacked pennies – for circles that peel cleanly, apply smoothly, and show the beautiful dimensional scale effect properly.

Using Too Much Gold Luster Dust Paint At Once

A single thick coat of gold luster paint dries uneven and streaky rather than brilliantly metallic. Thin the luster dust mixture to a watery, fluid consistency and apply multiple thin coats with a small brush, letting each dry briefly before adding the next. Three thin coats of gold paint builds up to a far more vivid, even metallic finish than one heavy application. Work in smooth, confident strokes in one direction per coat – going back over wet paint while applying causes streaking.

Callie’s Kitchen Note: The hardest part of the mermaid scale technique for most people is trusting the process while you’re only partway through. When you’ve done the first three or four rows and the cake still has a lot of plain frosting showing, it can look a little sparse and you start to second-guess whether it’s going to work. Keep going. The visual impact arrives suddenly somewhere around the halfway point when the pattern becomes unmistakably recognizable and starts looking genuinely beautiful. Every cake decorator I’ve watched do this technique has had the same “oh, there it is” moment at around the same point. Trust the process and keep placing circles.

Storage

Room temperature: A fully decorated mermaid princess cake keeps at room temperature for up to 2 days in a cool, dry spot. Fondant decorations – especially the crown and gold seashells – are sensitive to humidity and warmth. Store away from any warm or steamy areas of the kitchen. A large cake dome protects the decorations without touching them if you prop the dome edge slightly away from the base with small pieces of folded parchment to allow a little air circulation.

Refrigerator: The cake keeps in the refrigerator for up to 3-4 days. Store loosely covered. The most important thing to know about refrigerating this cake: condensation forms on the gold luster dust surfaces when the cold cake moves to a warm room, and this moisture can cause the gold paint to run slightly and the fondant surfaces to become tacky. Allow the cake to come to room temperature very gradually – ideally by moving it to a cool room rather than directly into a warm one – for the clearest, most beautiful presentation.

Freezing cake layers: The unfrosted, completely cooled cake layers freeze perfectly for up to 2 months. Wrap each in two layers of plastic wrap and then foil. Thaw at room temperature still wrapped overnight. A fully decorated cake with fondant scales, a gold crown, and luster dust details is not suitable for freezing – the moisture from thawing severely damages fondant decorations and the luster dust finish.

Make-ahead strategy: This cake rewards advanced planning more than almost any other in my collection. Crown and seashells made 2 days ahead. Cake layers baked and wrapped 1-2 days ahead. Buttercream made up to 3 days ahead and refrigerated. Scale work done the day before the party. The morning of the party: place the crown, refrigerate, bring to room temperature 30 minutes before serving. Zero stress on the actual day.

Mermaid Princess Cake Variations

Silver Ice Queen Version

Swap gold for silver throughout – silver edible luster dust on the crown and seashells, white and icy blue fondant scales, and a pale blue-to-white ombre buttercream. The result looks like an ice queen from an underwater winter kingdom and is absolutely stunning in its own right. Use silver dragees instead of gold pearls and add edible crystal sprinkles for a frost and ice effect. This version works beautifully as a winter birthday cake or a Frozen-themed party centerpiece.

Rose Gold Princess Cake

Mix pink and gold luster dust to create a rose gold metallic effect on the crown and shells. Use blush pink and soft peach fondant for the scales and a blush-to-pale-gold ombre buttercream. The rose gold color palette feels very contemporary and sophisticated and works beautifully for a teenage or adult birthday. Add edible rose gold sprinkles and blush-colored sugar pearls for a completely cohesive, modern aesthetic.

Lemon And Raspberry Filling

Add a layer of bright raspberry jam or fresh lemon curd between the cake layers alongside the buttercream filling. The tartness of either fruit filling contrasts beautifully with the sweet vanilla cake and rich buttercream in a way that makes the finished cake feel less heavy and more balanced. The lemon curd version in particular has a fresh, summery quality that makes it feel a little lighter despite the elaborate exterior. Spread the curd in a thin, even layer and keep it away from the outer edges to prevent it from squeezing out when the layers are stacked and pressed.

Chocolate Cake Base

Replace 1/2 cup of the flour with unsweetened cocoa powder for a chocolate interior that creates a dramatic contrast when sliced – deep brown layers against the lavender and teal buttercream frosting and pale fondant scales. The chocolate flavor pairs beautifully with both vanilla and raspberry fillings. For a more intense chocolate experience, use a dark chocolate ganache between the layers instead of buttercream filling.

Coconut And Lime Tropical Version

Add 1/2 cup of shredded sweetened coconut to the cake batter and replace 2 tablespoons of milk with coconut milk. Add the zest of two limes to the buttercream for a tropical, citrusy note that brightens the rich frosting. Use turquoise and sea-foam green for the scale and buttercream colors rather than lavender and teal for a more tropical-ocean palette. The coconut and lime notes feel genuinely tropical and work beautifully for a summer birthday or a more beach-oriented take on the mermaid princess theme.

Gluten-Free Version

Swap the all-purpose flour for a high-quality 1:1 gluten-free all-purpose baking blend. Let the batter rest in the pans for 10 minutes before baking – this hydration rest period significantly improves the texture of gluten-free cakes by allowing the starches to fully absorb the liquid in the batter before the structure begins to set. The finished layers will be very close to the wheat flour version in flavor and texture, particularly because this recipe includes enough butter and egg to provide structure without relying entirely on gluten.

Mini Individual Mermaid Princess Cakes

Use 4-inch cake pans to make individual mini cakes – each person gets their own personal mermaid princess cake to cut into. The same recipe makes approximately four to five mini two-layer cakes. Apply scales only to the sides rather than the full height for smaller cakes. Make tiny crowns from fondant in proportion to the smaller cake diameter. This format works beautifully for a birthday party where each child at the table gets their own royal mermaid cake – the reaction is genuinely wonderful.

Serving Suggestions

This mermaid princess cake is a true celebration centerpiece and deserves to be displayed and served with the ceremony it warrants.

The Royal Presentation

Place the cake on a gold or pearl-finish cake stand for the most regal visual impact. If serving at a party, bring it to the table already on its stand and let everyone take it in before any cutting begins. The scale detail, the gleaming gold crown, and the shimmer of the luster dust pieces work together to create a cohesive, genuinely stunning visual that photographs beautifully. Make sure there’s a moment for photos before the first slice is cut – this cake deserves that courtesy.

Decorate the table around the cake stand with loose pearl beads, real or artificial small shells, and a few sprigs of something elegant – dried lavender or silver eucalyptus both work beautifully with the lavender and gold color palette. A scattering of edible gold stars around the base of the stand adds to the royal atmosphere. The overall effect should feel like a genuinely special occasion rather than just a birthday party.

What To Serve Alongside

Fresh fruit – raspberries, strawberries, and blueberries – arranged in a small bowl alongside each plate provides a tart, refreshing contrast to the sweet vanilla cake and rich buttercream. The red and blue of the berries against the lavender and gold of the cake looks beautiful on each plate. For an extra indulgent option, a small scoop of lavender honey ice cream alongside a slice is a genuinely extraordinary combination that adult guests especially love.

Occasion Ideas

• Mermaid or princess birthday parties for children – this is the cake that makes the birthday child feel genuinely royalty
• Sweet sixteen celebrations where something more sophisticated than a standard birthday cake is needed
• Baby showers with a mermaid or ocean-royalty theme
• Bridal showers where the color palette complements the wedding colors
• Any celebration where the occasion deserves a cake that feels truly exceptional
• A baking project undertaken purely for the satisfaction of creating something beautiful

Beverage Pairings

A lavender lemonade – homemade lemonade infused with lavender simple syrup and a drop of purple food coloring – looks absolutely gorgeous alongside this cake and the flavor combination with the vanilla buttercream is really lovely. A sparkling elderflower cordial with teal-tinted water for an ocean blue look is another beautiful and thematically perfect choice. For an adult birthday gathering, a glass of Prosecco or a lavender gin spritz alongside this cake feels genuinely celebratory and matches the elegant, regal energy of the cake itself.

FAQ

Recipes You May Like

If you loved making this mermaid princess cake, here are three more showstopping celebration cakes from the blog that belong in your baking repertoire.

Mermaid Candy Cake – The playful counterpart to this elegant princess version. Three colorful cake layers inside, pastel ombre buttercream, a cascading candy melt drip, and an exterior covered in gummy fish, chocolate seashells, and edible glitter. If the mermaid princess cake is the royal formal dinner, the mermaid candy cake is the birthday party that follows. Both together on a dessert table create a complete and spectacular mermaid spread.

Easy Barbie Cake Recipe – Another iconic character-inspired birthday cake that creates the same level of wide-eyed excitement as this mermaid princess version. If you’ve successfully tackled the scale work and crown on this cake, the Barbie cake feels very approachable – it uses similar buttercream and fondant decorating techniques with a completely different and equally beloved theme.

Coconut Layer Cake – When you want a stunning celebration cake that’s equally beautiful but less focused on character decoration, this coconut layer cake is the answer. Fragrant coconut layers, a lush coconut frosting, and a gorgeous shredded coconut exterior – it’s one of the most popular cakes on the blog and has an elegance of its own that works beautifully for birthdays, showers, and any occasion that deserves something special.

Conclusion

This mermaid princess cake is the one I’m most proud of in my entire mermaid cake collection. There’s something about the combination of the lavender scales, the teal-to-lavender ombre frosting, and the gleaming gold crown that comes together into a whole that is genuinely more beautiful than the sum of its parts. Every time I’ve made it, I’ve stood back when it was finished and felt that quiet satisfaction that only comes from making something you’re actually proud of.

Emily wore her own birthday crown the day this cake debuted at her party and announced that the cake matched her outfit, which she considered an unambiguous success. My husband called it the best cake I’d ever made. Several party guests asked if I’d considered starting a cake business – which I haven’t, because I like baking for love rather than for orders, but it’s a nice thing to be asked.

Make this cake for the next person in your life who deserves to feel like underwater royalty. Bring it to the table, watch the reaction, and then come back and tell me all about it in the comments. Please save this to Pinterest so more mermaid-loving bakers can find their new most ambitious and most rewarding cake project.

Happy baking! – Callie

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