Citrus champagne layer cake is a gorgeous dessert for citrus season. Layered with tangy citrus curd and a light champagne buttercream, this cake is bright, buttery, and deeply satisfying.
How to Make Citrus Champagne Layer Cake
Champagne Reduction – Start by simmering champagne or prosecco in a heavy saucepan over medium-low heat. Stir occasionally and reduce until you have about 1 cup remaining (roughly 10 minutes). Transfer to a glass measuring cup and let cool to room temperature. This reduction flavors both the cake and the frosting.
Citrus Curd – Homemade citrus curd is silky and bright, perfect between the cake layers. In a heavy saucepan whisk together citrus zest and juice, sugar, and eggs (a blend of Meyer lemons and tangerines works beautifully). Cook over moderately low heat, whisking constantly until the mixture begins to thicken. Add the butter a few pieces at a time, whisking until fully incorporated. Continue cooking until the curd is smooth, thick, and coats the back of a spoon (about 5 minutes). Strain through a fine-mesh sieve into a bowl, press plastic directly on the surface, and chill until cold (at least one hour).
Cake – The 8-inch layers are flavored with citrus zest, vanilla, and the champagne reduction, producing soft, tender cakes. For even layers, weigh each prepared cake pan as you divide the batter.
Champagne Buttercream Frosting – Beat butter and salt in a large mixer on medium speed until smooth. Add 2 cups of powdered sugar on low and mix until incorporated, then add 3 tablespoons of the cooled champagne reduction and vanilla. Add the remaining powdered sugar 1 cup at a time on low, scraping down the bowl as needed. Increase speed and beat until the frosting is light and airy.
Assemble Cake – Place one cake layer on a rotating stand. Spread a thin layer of frosting, then pipe a ring of frosting around the edge to create a barrier. Fill the center with citrus curd. Repeat with the second layer, then top with the final layer and chill for 20 minutes. Use an offset spatula to cover the top and sides with frosting while rotating the stand, and smooth the sides gently with a bench scraper to remove excess frosting.
More layer cake recipes to try:
- Nutella Swirl Layer Cake
- Classic Carrot Cake
- Meyer Lemon Crunch Cake
Citrus Champagne Layer Cake
- Author: Laura Kasavan
- Prep Time: 3 hours
- Cook Time: 40 minutes
- Total Time: 3 hours 40 minutes
- Yield: 1 8-inch cake, serves 12
- Category: Dessert
- Method: Bake
- Cuisine: American
Description
Citrus champagne layer cake is a show-stopping dessert for any occasion. The combination of zesty curd and a delicate champagne buttercream balances sweetness with bright citrus flavor, making it ideal for spring and summer gatherings.
Ingredients
Champagne Reduction
- 1 1/2 cups champagne or prosecco
Citrus Curd
- 1 1/2 tsp fresh citrus zest
- 6 Tbsp fresh citrus juice
- 6 Tbsp sugar
- 2 large eggs, at room temperature
- 1/4 cup unsalted butter, cut into small pieces
Cake
- 3 cups all-purpose flour
- 2 tsp baking powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 cup unsalted butter, at room temperature
- 2 cups sugar
- 2 Tbsp fresh citrus zest
- 1 tsp vanilla extract
- 4 large eggs, at room temperature
- 1/2 cup reduced-fat buttermilk, at room temperature
- 3/4 cup champagne reduction (from above)
Frosting
- 2 cups unsalted butter, at room temperature
- 1/2 tsp salt
- 5 cups powdered sugar, divided
- 3 Tbsp champagne reduction (from above)
- 1/2 tsp vanilla extract
Instructions
- Make the champagne reduction: simmer champagne over medium-low heat until reduced to 1 cup (about 10 minutes). Cool to room temperature.
- Make the curd: whisk zest, juice, sugar, and eggs in a saucepan. Cook over moderately low heat, whisking constantly until slightly thickened. Add butter a few pieces at a time until fully incorporated. Continue until the curd coats the back of a spoon (about 5 minutes). Strain, press plastic on the surface, and chill at least one hour.
- Prepare the cake: preheat the oven to 350°F. Butter and flour three 8-inch round pans. Whisk together flour, baking powder, baking soda, and salt.
- In a mixer, beat butter and sugar on medium until light and fluffy. Mix in zest and vanilla. Add eggs one at a time, then reduce speed to low and add flour in three additions, alternating with buttermilk and champagne reduction, beginning and ending with the flour mixture.
- Divide batter evenly between pans and smooth. Tap the pans to release air bubbles.
- Bake 24–26 minutes, until the cakes are golden and a toothpick comes out clean. Cool in pans 15 minutes, then invert onto wire racks to cool completely.
- Make the frosting: beat butter and salt until smooth. Add 2 cups powdered sugar on low, then mix in the champagne reduction and vanilla. Add remaining powdered sugar 1 cup at a time on low, then increase speed and beat until light and airy.
- Assemble the cake: place one layer on a rotating stand. Spread a thin layer of frosting, pipe a ring around the edge, and spoon about 3 tablespoons of citrus curd into the center. Repeat with the second layer, then top with the final layer and chill 20 minutes.
- Finish the cake by applying a crumb coat and a final layer of frosting. Smooth the sides with a bench scraper for a clean finish.
Equipment
Cake pans
Stand mixer
Notes
Make ahead: The champagne reduction and citrus curd can be made a day ahead and refrigerated overnight.
Citrus: A mix of Meyer lemons and tangerines adds a lovely balance of sweetness and acidity.