Mimosa Cake Recipe
I still remember the first time I baked a Mimosa Cake for a small Sunday brunch and how the kitchen filled with bright citrus perfume and tiny champagne bubbles as it baked. I tinker with cakes often, but this Mimosa Cake has a way of feeling celebratory without the fuss, so it became my go-to when friends drop by unannounced. The balance of tender cake layers and a silky orange Swiss meringue buttercream makes it feel special, yet forgiving. If you like a cake that tastes like a sunny toast, you will want to try this one.
Why Mimosa Cake Became My Brunch Favorite
There was a rainy Saturday when I needed something to lift the mood, so I pulled out this Mimosa Cake recipe and let the citrus and champagne do the cheering. As the batter came together the kitchen smelled like a citrus orchard after a light rain, and the act of folding in the champagne felt like adding a little secret sparkle. I remember watching the pale gold batter ribbon off the spatula, and feeling oddly comforted by the steady rhythm of measuring, whisking and scraping. When the layers came out light and tender, I felt proud but also surprised at how approachable it was. Sharing the first slice with my neighbor, who closed her eyes and smiled, made me realize this cake is more than ingredients; it is a small celebration that fits on a plate.
The Players That Make This Cake Sing
- Granulated Sugar: Sweetens both cake and meringue; use fine sugar for quicker dissolution. Substitute with superfine sugar if needed.
- Vegetable Oil: Keeps the crumb tender and moist; can swap for light olive oil or melted coconut oil for nuance.
- Eggs and Egg Whites: Whole eggs build structure while whites make the Swiss meringue; use room temperature for stability.
- Orange Zest: Brings bright citrus flavor; pick firm, thin-skinned oranges and avoid the white pith.
- Champagne and Buttermilk: Champagne adds sparkle and aroma, but prosecco or sparkling water works in a pinch.

Essential Kitchen Tools You Should Have
A few reliable tools make this Mimosa Cake much easier to pull off. The stand mixer saves time when whipping the Swiss meringue and finishing the buttercream, but a sturdy hand mixer will work too. A good set of mixing bowls keeps wet and dry ingredients separate so you can follow the alternating additions without mess. An offset spatula and piping bag help with a smooth finish, though you can scrape and smooth with a butter knife in a pinch. Finally, accurate pans and a reliable oven thermometer prevent uneven baking.
- Stand mixer or hand mixer: Essential for meringue and buttercream.
- Mixing bowls: For combining dry and wet ingredients separately.
- 9-inch round cake pans: For even layers; line or grease as you prefer.
- Offset spatula and bench scraper: For smooth frosting and clean edges.
- Thermometer: Helpful for the meringue water bath and ensuring oven accuracy.
Step-by-Step Preparation Guide
Step 1: Combine sugar, oil, eggs and vanilla
In a large mixing bowl beat the granulated sugar with the vegetable oil, whole eggs and pure vanilla extract on medium speed until the mixture lightens in color and becomes slightly aerated — about two minutes. Scrape the bowl as needed so everything folds together into a smooth, glossy, pale yellow base. This is the moment the batter begins to feel cohesive and silky, not dry or curdled.
Step 2: Fold in sour cream and orange zest
Add the sour cream and the bright orange zest to the bowl and beat just until fully incorporated. The batter will deepen to a faint warm orange flecked with fine zest, with a thicker, creamier texture that clings to the paddle. Stop when streaks disappear and the mixture looks uniformly hydrated.
Step 3: Combine dry ingredients and alternate wet additions
In a separate bowl whisk together the all-purpose flour, baking powder and salt. Return to the mixer and, on low speed, alternate adding the dry flour mixture with the buttermilk and champagne — starting and finishing with the dry. Mix gently until the flour is just incorporated; finish by hand with a spatula, scraping the bottom and lifting batter to keep it airy. The result should be a pourable, slightly thick batter, pale gold with tiny champagne bubbles and flecks of orange zest, smooth and ribboning slowly off the spatula.

Step 4: Portion, bake and cool the layers
Divide the batter between two (or three, repeating the process) 9-inch round pans lined as preferred, smoothing the surface. Bake at 350°F for about 18–22 minutes, watching closely in the final minutes until a toothpick comes out clean. Let cakes cool in pans briefly, then remove to cool completely on a rack before assembly. Each layer should be light, tender and evenly risen with a fine, even crumb.
Step 5: Heat sugar and egg whites over a water bath
For the frosting combine the granulated sugar and the room-temperature egg whites in a heatproof metal mixing bowl set over a saucepan with a shallow amount of simmering water. Stir constantly and gently heat the mixture until warm and the sugar feels dissolved between your fingers (about 140°F if using a thermometer). The mixture should be completely smooth and slightly glossy.
Step 6: Whip to a glossy Swiss meringue
Transfer the warmed mixture to a stand mixer fitted with the whisk and whip, beginning on low and increasing to medium. Whip for about 10–15 minutes total until the whites are bright white, glossy and form soft-to-stiff peaks and the bowl has cooled to room temperature — a voluminous, satiny meringue.
Step 7: Turn meringue into a silky buttercream
Switch to the paddle attachment and, at medium-low speed, add room-temperature butter a few tablespoons at a time, letting each addition incorporate fully. The mixture may appear curdled at times but will come together into a smooth, opaque Swiss meringue buttercream. Stir in vanilla bean paste (or extract) and orange zest, then beat until the frosting is glossy, silky and spreadable.
Step 8: Assemble, finish and decorate
Stack the cooled layers with an even layer of frosting between each, then crumb-coat and chill briefly before applying a final smooth coat of frosting. Finish the top with a bright arrangement of halved strawberries, whole blueberries and raspberries and a scattering of orange zest curls; keep a small bowl of extra berries to the side. Chill briefly to set the buttercream, then serve at room temperature for the creamiest texture.

Making It Your Own
I like to treat Mimosa Cake like a base for experiments. For a nonalcoholic version, swap the champagne for sparkling apple cider and add a teaspoon of orange flower water for complexity. When I tried a summer berry riff, I folded finely chopped macerated strawberries into the filling for pockets of bright juice.
If you want a gluten-free cake, replace the all-purpose flour with a 1:1 gluten-free flour blend and add a teaspoon of xanthan gum if your blend does not contain it. For a lighter, less sweet finish, halve the surface decoration and top with thinly sliced oranges for an elegant citrus crown. Small tweaks like toasted almond in the crumb or a splash of Grand Marnier in the buttercream can make it feel regional or festive.
How to Serve
When hosting a brunch for six, I slice the Mimosa Cake into modest wedges and place a few extra berries on each plate. For a larger party, this recipe stretches nicely if you double it and bake in more pans; the note about doubling for a four-layer cake is helpful when you want a taller showstopper. Keep the cake chilled until 30 minutes before serving so the buttercream softens slightly and the flavors bloom.
If you bring the cake to a picnic, transport it on a flat board in a shallow box and keep it in a cooler. For an elegant dinner, garnish each slice with a tiny spoonful of champagne-poached citrus segments and a mint sprig. Presentation is all about balance: bright fruit, clean edges and a sprinkle of extra zest.
Storage and Reheating Tips
Store the Mimosa Cake covered in the refrigerator for up to 4 days. The Swiss meringue buttercream keeps well chilled and the cake maintains its texture, but allow slices to come to room temperature for about 30 minutes before serving to bring out flavor and softness.
If you need to freeze layers, wrap each cooled layer tightly in plastic and foil and freeze for up to one month. Thaw in the refrigerator overnight and then bring to room temperature before assembling and frosting.
Common Mistakes and How to Avoid Them
One common worry is overwhipping the meringue or not heating the sugar enough. Keep the sugar dissolved by warming to the recommended temperature and watch the mixer; if the bowl is warm from whipping, pause and let it cool a bit before adding butter. Another slip is dense cake layers from overmixing the flour; fold gently and stop when just combined so the crumb stays light.
A final hiccup is serving the cake too cold. The buttercream tastes best slightly softened, so plan to pull it from the fridge 20 to 30 minutes before you want to serve.
Ready to Bake Your Own Mimosa Cake?
Give this Mimosa Cake a try the next time you want something celebratory but approachable. It rewards a little patience in the meringue stage and shines with fresh fruit and bright zest. Make a cake, invite a friend, and enjoy a small, citrusy celebration.
Frequently Asked Questions.
- What if I do not have champagne? You can substitute prosecco, cava or even a dry sparkling apple cider; each will add bubbles and aroma, though nonalcoholic options will be less boozy.
- Can I make the frosting ahead? Yes, Swiss meringue buttercream holds in the fridge for up to three days; bring to room temperature and rewhip briefly if it looks separated.
- How do I prevent the cake from sinking? Avoid opening the oven in the first 15 minutes and do not overmix the batter; also be sure baking powder is fresh.
- Is it safe to use raw egg whites for the meringue? The egg whites are heated over the water bath to dissolve sugar and reach a safe temperature before whipping, which reduces risk.
- Can I turn this into cupcakes? Absolutely, bake at 350°F for about 12 to 15 minutes and watch for a clean toothpick, then pipe the buttercream once cooled.

Mimosa Cake
Make Mimosa Cake with champagne-kissed layers and orange Swiss meringue buttercream for a bright, celebratory dessert.
Ingredients
Instructions
Step 1: Combine sugar, oil, eggs and vanilla
In a large mixing bowl beat the granulated sugar with the vegetable oil, whole eggs and pure vanilla extract on medium speed until the mixture lightens in color and becomes slightly aerated — about two minutes. Scrape the bowl as needed so everything folds together into a smooth, glossy, pale yellow base. This is the moment the batter begins to feel cohesive and silky, not dry or curdled.
Step 2: Fold in sour cream and orange zest
Add the sour cream and the bright orange zest to the bowl and beat just until fully incorporated. The batter will deepen to a faint warm orange flecked with fine zest, with a thicker, creamier texture that clings to the paddle. Stop when streaks disappear and the mixture looks uniformly hydrated.
Step 3: Combine dry ingredients and alternate wet additions
In a separate bowl whisk together the all-purpose flour, baking powder and salt. Return to the mixer and, on low speed, alternate adding the dry flour mixture with the buttermilk and champagne — starting and finishing with the dry. Mix gently until the flour is just incorporated; finish by hand with a spatula, scraping the bottom and lifting batter to keep it airy. The result should be a pourable, slightly thick batter, pale gold with tiny champagne bubbles and flecks of orange zest, smooth and ribboning slowly off the spatula.

Step 4: Portion, bake and cool the layers
Divide the batter between two (or three, repeating the process) 9-inch round pans lined as preferred, smoothing the surface. Bake at 350°F for about 18–22 minutes, watching closely in the final minutes until a toothpick comes out clean. Let cakes cool in pans briefly, then remove to cool completely on a rack before assembly. Each layer should be light, tender and evenly risen with a fine, even crumb.
Step 5: Heat sugar and egg whites over a water bath
For the frosting combine the granulated sugar and the room-temperature egg whites in a heatproof metal mixing bowl set over a saucepan with a shallow amount of simmering water. Stir constantly and gently heat the mixture until warm and the sugar feels dissolved between your fingers (about 140°F if using a thermometer). The mixture should be completely smooth and slightly glossy.
Step 6: Whip to a glossy Swiss meringue
Transfer the warmed mixture to a stand mixer fitted with the whisk and whip, beginning on low and increasing to medium. Whip for about 10–15 minutes total until the whites are bright white, glossy and form soft-to-stiff peaks and the bowl has cooled to room temperature — a voluminous, satiny meringue.
Step 7: Turn meringue into a silky buttercream
Switch to the paddle attachment and, at medium-low speed, add room-temperature butter a few tablespoons at a time, letting each addition incorporate fully. The mixture may appear curdled at times but will come together into a smooth, opaque Swiss meringue buttercream. Stir in vanilla bean paste (or extract) and orange zest, then beat until the frosting is glossy, silky and spreadable.
Step 8: Assemble, finish and decorate
Stack the cooled layers with an even layer of frosting between each, then crumb-coat and chill briefly before applying a final smooth coat of frosting. Finish the top with a bright arrangement of halved strawberries, whole blueberries and raspberries and a scattering of orange zest curls; keep a small bowl of extra berries to the side. Chill briefly to set the buttercream, then serve at room temperature for the creamiest texture.

Notes
- Double the recipe for a four-layer cake as suggested.
- Use room-temperature eggs and butter for easier incorporation.
- Warm the egg white and sugar mixture to ensure the sugar dissolves.
- Bring chilled cake to room temperature 20 to 30 minutes before serving for best texture.
- Freeze unfilled layers wrapped tightly for up to one month.
