Apple Buttermilk Brunch Cake – A Cozy and Delicious Treat

By Callie

Introduction

This apple buttermilk brunch cake is the recipe that made me realize brunch desserts are their own category. It’s not a breakfast food, exactly, and it’s not a full-on dessert cake either. It lives in that sweet spot between the two – tender, warmly spiced, studded with tart Granny Smith apples, and just sweet enough to feel like a treat without tipping into sugar overload. The buttermilk glaze drizzled over the top adds a gentle sweetness that soaks into the warm crumb and makes the whole thing smell like a bakery.

I made this for the first time on a November Saturday when my in-laws were visiting for the weekend. I wanted something on the brunch table that wasn’t just eggs and toast, something warm and bakery-like that I could put together without a lot of stress. A friend had scribbled the bones of this recipe on a napkin at a church potluck and told me, “It’s the easiest cake you’ll ever make.” She was right. No mixer required if you don’t want to use one, no complicated techniques, and the applesauce in the batter keeps it moist without adding oil. My mother-in-law had two slices before noon and quietly asked me to write the recipe down for her.

The cake itself is soft and tender with a crumb that’s somewhere between a muffin and a butter cake – not dense, not super light, just right. The cubed apples scattered through the batter stay slightly firm during baking and create these pockets of tart, juicy fruit in every slice. The sliced apple and cinnamon sugar topping caramelizes slightly in the oven, giving the top a gorgeous golden color and a gentle crunch. And the buttermilk glaze? It’s two ingredients – powdered sugar and buttermilk – whisked together and drizzled over the warm cake so it seeps into every crack.

It’s a Project Recipe in terms of bake time (about 75 minutes), but the hands-on prep is only about 15 to 20 minutes. The oven does the real work.

If you love baking cakes with warm spices, you should also try my Classic Coffee Cake – it’s a different approach to brunch baking with a buttery cinnamon streusel that’s equally hard to resist.

Why You Will Like This Apple Buttermilk Brunch Cake

• Not too sweet for morning eating – A lot of cakes are way too sugary for 10 AM. This one has a restrained sweetness from the sugar in the batter, a tartness from the Granny Smith apples, and a gentle glaze rather than a heavy frosting. It’s sweet enough to feel like a treat but light enough to go with coffee before lunch.
• The buttermilk makes the crumb incredibly tender – Buttermilk is slightly acidic, which reacts with the baking soda and baking powder to create a lighter, more tender crumb than regular milk would. It also adds a faint tang that balances the sweetness of the sugar and glaze.
• Loaded with real apple flavor – Four Granny Smith apples go into this recipe. Two are cubed and folded into the batter, and two are thinly sliced for the cinnamon sugar topping. You’re getting apple in every single bite, and the tart Granny Smiths stand up to the sugar without turning into mush.
• Simple enough for a weekday baker – No stand mixer required (though one speeds things up). No complicated frosting or decoration. No chilling time. Mix, pour, arrange the apple topping, bake, glaze. That’s it.
• Gorgeous without trying – The sliced apple topping arranged over the batter, dusted with cinnamon sugar, creates a pattern that looks intentional and bakery-polished even if you just scatter the slices randomly. The glaze drizzled over the top catches in the grooves and adds a glossy finish. People always think you spent more time on this than you did.
• Feeds 12 from one pan – A 10-inch springform pan gives you a tall, substantial cake that slices into 12 generous pieces. Good for brunch parties, holiday mornings, or having a slice every day for nearly two weeks.
• Applesauce keeps it moist for days – The applesauce in the batter adds moisture without extra fat, which means the cake stays soft and tender for several days at room temperature instead of drying out after one day like many butter cakes do.
• Perfect for fall, but good year-round – Granny Smith apples are available twelve months a year, so this isn’t limited to apple season. That said, it’s at its absolute best in September through November when apples are at peak freshness.

Apple Buttermilk Brunch Cake Ingredients

Two components: the cake itself and the buttermilk glaze. Both are simple.

For the Cake

• 2 1/4 cups all-purpose flour – Standard all-purpose flour gives the right structure. Don’t pack the measuring cup – spoon the flour in and level with a knife for accurate measurement. Too much flour makes a dense, dry cake.
• 2 teaspoons baking powder – The primary leavener. Check that yours is fresh – baking powder loses potency over time. If you haven’t replaced it in the last 6 months, test it by dropping a teaspoon into hot water. If it fizzes, it’s still good.
• 1/2 teaspoon baking soda – Works with the acidity of the buttermilk to create additional lift and tenderness. The combination of baking powder and baking soda together gives you the best rise and the softest crumb.
• 1/4 teaspoon nutmeg – Just a whisper. Nutmeg adds a warm, slightly sweet background note that you can’t quite identify in the finished cake, but you’d miss it if it weren’t there. Freshly grated nutmeg is more potent than pre-ground, so use a little less if grating your own.
• 1/8 teaspoon salt – Balances the sweetness and brings out the apple and spice flavors.
• 1/2 teaspoon ground cinnamon – For the batter. There’s additional cinnamon in the topping. Cinnamon is the defining flavor of this cake alongside the apples.
• 1 1/3 cups granulated sugar – For the batter. This sounds like a lot, but the tartness of the Granny Smiths and the tang of the buttermilk balance it. The finished cake doesn’t taste overly sweet.
• 1/3 cup applesauce – Acts as both a flavor enhancer and a moisture keeper. The applesauce replaces some of the fat you’d typically see in a cake recipe, keeping the crumb tender without making it greasy. Use unsweetened applesauce.
• 1 teaspoon vanilla extract – The real stuff, not imitation. Adds a warm sweetness that rounds out the spice flavors.
• 2/3 cup buttermilk – The star of the batter. Full-fat buttermilk gives the richest flavor and the most tender crumb. Low-fat works too. If you don’t have buttermilk on hand, mix 2/3 cup of regular milk with 2 teaspoons of lemon juice or white vinegar and let it sit for 5 minutes until it curdles slightly.
• 2 Granny Smith apples, peeled and cubed – Cut into roughly 1/2-inch cubes. These get folded into the batter and create pockets of tart, juicy fruit throughout the cake. Granny Smith is the best variety here because it holds its shape during the long bake and provides a nice tartness that contrasts with the sweet batter.
• 1/2 cup chopped pecans or walnuts (optional) – Adds a toasty crunch that contrasts with the soft crumb and tender apples. Pecans have a buttery sweetness, walnuts are more earthy. Both work. Skip them for a nut-free version.
• 1/2 cup butter, softened to room temperature – Room temperature butter (not melted, not cold) is critical for proper creaming. It should be soft enough to dent with your finger but still hold its shape. Creaming softened butter with sugar incorporates air into the batter, which is what makes the cake light rather than dense.
• 3 large eggs – Also at room temperature if possible. Cold eggs can seize the creamed butter and cause a lumpy batter.

Callie’s Kitchen Note: I cannot stress enough how important room temperature butter is for this cake. The first time I made it, I was impatient and used butter straight from the fridge. I tried to cream it with the sugar and it just sat there in hard chunks, refusing to fluff up. The cake came out dense and heavy – more like a thick pancake than a brunch cake. Now I set the butter on the counter at least 45 minutes before I start. If I forget, I cut it into small pieces and let it sit for 20 minutes. It softens faster in smaller chunks. Properly softened butter creams into a pale, fluffy mixture with the sugar that traps air and gives the cake its lift.

For the Topping

• 2 Granny Smith apples, thinly sliced – These go on top of the batter before baking. Slice them about 1/8 inch thick so they soften during the long bake and develop slightly caramelized edges.
• 1/4 cup granulated sugar
• 1/2 teaspoon ground cinnamon – Toss the sliced apples with the sugar and cinnamon before arranging them on top.

For the Buttermilk Glaze

• 1 cup powdered sugar – Sifted to remove lumps.
• 1/4 cup buttermilk – Adds tang and creates a pourable consistency.

Ingredient Substitutions

• Buttermilk substitute: Mix 2/3 cup milk (any kind) with 2 teaspoons lemon juice or white vinegar. Let sit 5 minutes before using. This creates a homemade buttermilk that works in both the batter and the glaze.
• Dairy-free version: Use plant-based butter (like Earth Balance), make dairy-free buttermilk by adding lemon juice to oat milk or almond milk, and use the same plant-based buttermilk for the glaze.
• Gluten-free version: Replace the all-purpose flour with a 1:1 gluten-free baking blend (like Bob’s Red Mill or King Arthur Measure for Measure). The texture will be slightly different – a bit more crumbly – but the flavor is still excellent.
• Apple varieties: Honeycrisp apples are sweeter and softer than Granny Smith but work well. Pink Lady adds a slight floral sweetness. Fuji is very sweet and very soft, so it’ll mush more during baking. For the best results, use a firm, tart apple.
• Nut-free: Simply leave out the pecans or walnuts. The cake doesn’t need them structurally.
• Lower sugar option: Reduce the sugar in the batter to 1 cup. The cake will be less sweet but the tartness of the apples becomes more pronounced, which some people actually prefer.

How To Make Apple Buttermilk Brunch Cake

This is a Project Recipe – about 20 minutes of hands-on prep plus 75 minutes of bake time. Not a quick morning project, but the kind of thing you make on a Saturday morning while the coffee brews, and the house fills with the smell of apples and cinnamon.

Why We Cream the Butter and Sugar

Creaming softened butter with sugar is the most important step in this recipe. When you beat them together for 3 to 4 minutes, the sharp edges of the sugar crystals cut tiny air pockets into the butter. Those air pockets expand during baking (helped by the baking powder and baking soda), creating the light, tender crumb that makes this cake work as a brunch item rather than feeling like a heavy dessert. If you skip the creaming or rush it, the cake will be dense and flat. Take the full 3 to 4 minutes.

Mixing the Batter

Preheat your oven to 325 degrees F (165 degrees C). Grease and lightly flour a 10-inch springform pan. The springform is important because this cake is delicate when warm – you release the sides rather than flipping it out of a regular cake pan, which would risk breaking it.

In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon (1/2 teaspoon), nutmeg, and salt. Set aside.

In a large mixing bowl (or the bowl of a stand mixer), beat the softened butter, sugar, and vanilla together on medium speed until the mixture is pale, fluffy, and visibly lighter in color. This takes 3 to 4 minutes with a mixer, longer by hand with a wooden spoon. Scrape down the sides of the bowl once or twice during creaming.

Add the 3 eggs one at a time, beating well after each addition. Wait until each egg is fully incorporated before adding the next. Adding them all at once can break the emulsion and make the batter look curdled.

Add the buttermilk and applesauce and beat on low speed until combined. The batter might look slightly curdled at this point – that’s normal. It’ll come together when the dry ingredients go in.

Gradually add the dry ingredient mixture to the wet mixture, stirring on low speed (or by hand with a spatula) until just combined. Stop the moment you don’t see any more dry flour streaks. Overmixing at this stage develops the gluten in the flour and makes the cake tough and dense. A few small lumps are fine.

Fold in the cubed apples and chopped pecans (if using) with a rubber spatula. Distribute them evenly through the batter.

Callie’s Kitchen Note: I overmixed the batter on my second attempt because I wanted it perfectly smooth, and the cake came out with a gummy, tough texture that was nothing like the tender first version. The difference between mixing until just combined and mixing until smooth is about 10 seconds of stirring, but it changes the whole cake. Once you can’t see dry flour, stop. Lumps disappear during baking. Toughness doesn’t.

Preparing the Topping and Baking

Pour the batter into the prepared springform pan and smooth the top with a spatula.

In a small bowl, toss the thinly sliced apples (from the remaining 2 Granny Smiths) with the 1/4 cup sugar and 1/2 teaspoon cinnamon. Arrange the coated apple slices on top of the batter. You can fan them in concentric circles for a polished look, or scatter them randomly – both look good. Press the slices gently into the surface of the batter so they make contact rather than just sitting on top.

Place the pan on the middle rack of the oven. Bake for approximately 1 hour and 15 minutes. Start checking at the 1-hour mark. Insert a toothpick or thin knife into the center of the cake – it should come out clean with no wet batter clinging to it. The top should be golden brown and firm to the touch, and the apple slices should be softened with slightly caramelized edges.

This is a thick cake in a deep pan, so it takes longer to bake through than a standard layer cake. Don’t panic if it’s not done at 60 minutes – just keep checking every 5 minutes until the toothpick comes out clean. Every oven runs a little differently.

Cooling and Glazing

Let the cake cool in the pan on a cooling rack for at least 10 minutes before releasing the springform ring. The cake is fragile when hot and needs those 10 minutes to firm up enough to hold its shape.

While the cake cools, make the glaze. Sift the powdered sugar into a small bowl (sifting removes lumps and gives you a smoother glaze). Add the 1/4 cup buttermilk and whisk until smooth. The consistency should be thick enough to drizzle but thin enough to flow. If it’s too thick, add buttermilk a teaspoon at a time. If it’s too thin, add more powdered sugar.

Drizzle the glaze over the warm (not hot) cake. Use a spoon to create back-and-forth lines across the top, letting the glaze run down the sides and into the crevices between the apple slices. The warmth of the cake will cause the glaze to soak in slightly, creating a sweet, tangy coating that becomes part of the cake rather than just sitting on top.

Serve warm or at room temperature. The cake is at its absolute best within the first 2 hours of glazing, when the top is still slightly sticky and the interior is warm and fragrant.

Callie’s Kitchen Note: I tested glazing the cake while it was still piping hot versus letting it cool for 10 minutes, and the difference was significant. When I glazed it hot, the glaze melted into a thin liquid and disappeared completely into the cake – you couldn’t see it or taste it as a distinct layer. When I let it cool slightly first, the glaze set up into a visible, slightly opaque drizzle that you could see and taste. The 10-minute wait is worth it.

Common Mistakes To Avoid

I’ve been making this cake regularly for a few years now, and these are the mistakes I see most often when I share the recipe.

Using cold butter. Cold butter doesn’t cream properly with sugar. Instead of creating a light, fluffy base full of air pockets, you get dense chunks of butter sitting in sugar. The cake will be heavy and flat instead of light and tender. Set butter out at least 45 minutes before starting, or cut it into small pieces for a 20-minute shortcut.

Overmixing the batter after adding flour. Once the dry ingredients go in, you’re on a clock. Every additional stir develops gluten, which makes the cake tough and chewy instead of soft and tender. Stir until you can’t see dry flour, then stop. A few small lumps are not a problem.

Not checking for doneness early enough. Oven temperatures vary, and this cake can go from perfectly done to overdone in 10 minutes. Start checking at the 60-minute mark even though the recipe says 75 minutes. A toothpick in the center is the most reliable test.

Overbaking. A dry brunch cake is a disappointing brunch cake. The applesauce in the batter helps retain moisture, but it can only do so much against an extra 15 minutes in the oven. Pull it when the toothpick comes out clean, even if the color on top isn’t as deep as you expected.

Skipping the glaze. The glaze adds moisture, sweetness, and tang that tie the whole cake together. Without it, the cake is good but a little plain. With it, the cake goes from “nice” to “write the recipe down for me.”

Storage and Reheating

Storing the Cake

This cake keeps well at room temperature and in the fridge, which makes it a practical option for holiday mornings or weekend entertaining.

Room temperature: Store in an airtight container or cover the springform base tightly with plastic wrap. The cake stays moist and tender for up to 2 days at room temperature, thanks to the applesauce and buttermilk in the batter.

Refrigerator: Covered tightly, the cake keeps for up to 5 days in the fridge. The texture firms up slightly when cold, which some people prefer – it becomes a bit more like a dense, sliceable bar. Let it come to room temperature for about 20 minutes before serving for the best flavor, or eat it cold if you prefer the firmer texture.

Freezing Instructions

This cake freezes beautifully. Wrap individual slices in plastic wrap, then place in a freezer-safe bag. Or wrap the entire cake (without glaze) in two layers of plastic wrap and one layer of foil. Frozen cake keeps for up to 3 months.

For best results, freeze the cake without the glaze and add fresh glaze after thawing. The glaze gets a bit gummy after freezing and thawing, while a fresh drizzle over the thawed cake tastes and looks much better.

Thaw overnight in the refrigerator, then bring to room temperature before serving. Glaze right before putting it on the table.

Reheating Methods

• Microwave: Heat individual slices for 20 to 30 seconds. The microwave softens the cake and makes it taste almost fresh-baked. Don’t overdo it – 30 seconds is the max before it gets rubbery.
• Oven: Wrap the slice loosely in foil and warm at 300 degrees F for about 10 minutes. This method keeps the texture more cake-like and gently warms the apples without softening them too much.

Make-Ahead Strategy

This is an excellent make-ahead brunch item. Bake the cake the day before your gathering, let it cool completely, and store it covered at room temperature. In the morning, make the fresh glaze (takes 2 minutes), drizzle it over the cake, and serve. The cake actually tastes slightly better the next day because the flavors have had time to meld and the spices become more pronounced.

Callie’s Kitchen Note: I’ve started making two of these cakes back to back when I have a brunch planned – one for the party and one for the freezer. The second cake takes half the time because the oven is already preheated and all the ingredients are already out. Having a frozen brunch cake ready to go for an unexpected guest weekend or a random Sunday morning is one of the best kitchen moves I’ve made.

Apple Buttermilk Brunch Cake Variations

The base recipe is my standard, but here’s where I’ve taken it for seasonal variety and different occasions.

• Caramel apple version – Make the base recipe. Instead of the buttermilk glaze, drizzle warm caramel sauce (store-bought or homemade) over the cooled cake. The caramel with the cinnamon apples creates a dessert-level brunch cake that works equally well as an after-dinner treat. A sprinkle of flaky sea salt on top makes it even better.
• Pear and cardamom – Replace the Granny Smith apples with firm Bartlett or Bosc pears. Swap the cinnamon for 1/2 teaspoon ground cardamom in both the batter and the topping. The cardamom gives the cake a warm, slightly floral spiciness that’s different from cinnamon and pairs beautifully with pears.
• Cranberry apple holiday version – Add 1/2 cup dried cranberries to the batter along with the cubed apples. The cranberries add tartness, chewiness, and gorgeous red pops of color throughout the cake. Scatter a few fresh cranberries on the topping alongside the apple slices for the holiday table.
• Brown butter version – Brown the 1/2 cup of butter in a saucepan until the milk solids turn golden and it smells nutty, then let it solidify in the fridge until it returns to a softened state. Use this browned butter in place of regular butter in the batter. The brown butter adds a deep, nutty, almost toffee-like flavor that makes the cake taste more complex. This is extra effort but the result is worth it for a special occasion.
• Maple walnut version – Replace the buttermilk glaze with a maple glaze: 1 cup powdered sugar whisked with 3 tablespoons pure maple syrup and 1 tablespoon milk. Use walnuts instead of pecans. The maple-walnut combination with the apple is a classic fall pairing.
• Blueberry buttermilk version – Replace the cubed apples with 1 1/2 cups fresh blueberries in the batter. Skip the sliced apple topping and instead sprinkle the top with a streusel made from 1/4 cup flour, 1/4 cup brown sugar, and 2 tablespoons cold butter rubbed together. The blueberry-buttermilk combination is a completely different direction but equally good.
• Vegan version – Use plant-based butter, replace each egg with 1/4 cup unsweetened applesauce (increase the total applesauce to about 1 cup), and use plant-based buttermilk (oat milk plus lemon juice). The cake will be slightly denser than the original but still moist and flavorful. The glaze adapts with plant-based buttermilk.

Serving Suggestions

What To Serve With Apple Buttermilk Brunch Cake

Since this is a sweet baked item, pair it with things that add protein, tang, or savory balance.

Greek yogurt with a drizzle of honey is my go-to alongside a slice of this cake. The tangy, cool yogurt with the warm, spiced cake is a beautiful combination. A dollop of yogurt right on the plate next to the slice makes it feel more like a composed brunch plate.

Whipped cream if you want to go a little further. A small spoonful of freshly whipped cream alongside a warm slice is simple and wonderful. Don’t sweeten the cream – the cake and glaze have enough sugar already.

A savory egg dish balances the sweetness if you’re building a full brunch. A slice of this cake alongside a vegetable frittata or scrambled eggs gives you the sweet and savory contrast that makes a brunch table work.

Fresh fruit – A simple bowl of sliced strawberries or mixed berries alongside the cake adds freshness and acidity that complements the warm, spiced flavors.

Occasion Ideas

• Weekend brunch centerpiece
• Holiday morning (Christmas, Thanksgiving, Easter)
• Teacher or neighbor gift (wraps beautifully)
• Baby or bridal shower dessert table
• Saturday morning “just because” baking
• Potluck contribution
• Office breakfast meeting (slices well, travels easily in the springform base)

Beverage Pairings

• Hot coffee – The natural partner. The bitterness of a dark roast or medium roast cuts through the sweetness of the glaze and lets the apple and cinnamon flavors shine.
• Chai tea – The cardamom, ginger, and cinnamon in chai mirror the warm spices in the cake. It’s almost redundant, but in the best way.
• Apple cider – Warm or cold, apple cider doubles down on the apple flavor and makes the whole table feel like fall. This is my Thanksgiving morning pairing.
• Earl Grey tea – The bergamot in Earl Grey adds a citrusy brightness that contrasts nicely with the warm, cozy cake flavors.
• Cold milk – For the kids, or for the adults who are secretly kids about cake.

Presentation Tips

Serve the cake on the springform base (which doubles as a serving plate) or transfer it carefully to a cake stand. The sliced apple topping and the drizzled glaze do all the visual work for you. A light dusting of extra powdered sugar through a fine mesh strainer right before serving adds a polished, bakery-style finish. A few whole pecans placed at the edge of the cake or a cinnamon stick laid alongside are simple touches that make it look special.

Slice with a long, thin knife wiped clean between cuts for the neatest slices.

Apple Buttermilk Brunch Cake FAQ

Recipes You May Like

If this apple buttermilk brunch cake is your kind of baking, here are a few more sweet brunch treats from my kitchen:

• Classic Coffee Cake – A buttery cake with a thick cinnamon streusel layer. Same brunch-table energy with a different flavor direction. If you love cinnamon, this is your cake.
• Cinnamon Tea Cake – A lighter, more delicate cake with a cinnamon-sugar crust. Pairs perfectly with a cup of tea and works for both brunch and afternoon snacking.
• Easy Berry-Topped Pound Cake – A buttery pound cake with fresh berries on top. A different fruit direction but the same “sweet brunch baking” category. Great for spring and summer gatherings.

Conclusion

This apple buttermilk brunch cake is the recipe I reach for every time I want to put something warm, homemade, and special on the brunch table without spending the whole morning in the kitchen. The tender, buttermilk-infused crumb loaded with tart Granny Smith apples, the cinnamon sugar topping that caramelizes gently in the oven, and the simple two-ingredient glaze that soaks into every crack – it all adds up to a cake that tastes like it took way more effort than it actually did.

It’s the kind of recipe that gets quietly passed around. My mother-in-law gave it to her book club, who gave it to their neighbors, who emailed me asking for “the apple cake recipe from Callie’s website.” That’s the best compliment a recipe can get.

If you make it, leave me a comment and tell me what you thought. I want to know if you tried the caramel drizzle instead of the buttermilk glaze, or if you used pears instead of apples, or if your mother-in-law asked for the recipe too. And pin this to your Pinterest board so you have it saved for the next Saturday morning or holiday brunch. More of my recipes are on my Pinterest page too.

Happy baking!

Callie

Print