Description
This Tuxedo Cake Costco Copycat Recipe recreates the iconic layered chocolate cake with rich chocolate and white chocolate mousse layers, topped with a smooth chocolate ganache. Perfect for celebrations or chocolate lovers, this dessert combines moist chocolate cake layers with silky mousses for an indulgently elegant treat.
Ingredients
Scale
Chocolate Cake Layers
- 1 ¾ cups all-purpose flour
- ¾ cup unsweetened cocoa powder
- 2 cups granulated sugar
- 1 ½ teaspoons baking powder
- 1 ½ teaspoons baking soda
- ½ teaspoon salt
- 2 large eggs
- 1 cup buttermilk
- ½ cup vegetable oil
- 2 teaspoons vanilla extract
- 1 cup hot water
Chocolate Mousse Layer
- 1 cup heavy whipping cream
- 1 cup semi-sweet chocolate chips
White Chocolate Mousse Layer
- 1 cup heavy whipping cream
- 1 cup white chocolate chips
Chocolate Ganache
- 1 cup heavy whipping cream
- 1 cup semi-sweet chocolate chips
Optional Toppings
- Shaved chocolate, chocolate curls, or piped whipped cream for garnish
Instructions
- Prepare Cake Batter: Preheat oven to 350°F (175°C). Grease and line two 9-inch round cake pans with parchment paper. In a large bowl, whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt. Add eggs, buttermilk, vegetable oil, and vanilla extract, mixing until smooth. Gradually stir in hot water until fully combined; batter will be thin.
- Bake Cake Layers: Divide batter evenly between prepared pans. Bake for 30–35 minutes or until a toothpick inserted into the center comes out clean. Allow cakes to cool completely. Then, carefully slice each cake in half horizontally to yield four thin layers total.
- Make Chocolate Mousse: Heat 1 cup of heavy cream until just simmering. Pour over 1 cup semi-sweet chocolate chips and let sit for 1 minute to melt. Stir gently until smooth. Chill mixture until slightly thickened, then whip until light and fluffy.
- Make White Chocolate Mousse: Repeat the mousse process with 1 cup heavy cream and 1 cup white chocolate chips: heat cream to simmer, pour over chips, let sit, stir until smooth, chill, then whip until fluffy.
- Assemble Cake: Place one cake layer on a serving plate or cake board. Spread an even layer of chocolate mousse over it. Add the next cake layer and spread white chocolate mousse on top. Continue layering alternating chocolate mousse and white chocolate mousse between cake layers, finishing with a cake layer on top. Chill the assembled cake for at least 1 hour to set.
- Make Ganache and Decorate: Heat 1 cup heavy cream until simmering; pour over 1 cup semi-sweet chocolate chips and let sit for 1 minute. Stir until smooth ganache forms. Allow ganache to cool slightly, then pour over chilled cake, letting it drip down the sides. Garnish with shaved chocolate, curls, or piped whipped cream as desired. Refrigerate until serving.
Notes
- Freeze cake layers for 30 minutes before slicing for easier handling and cleaner cuts.
- This cake is best served chilled and can be made 1–2 days in advance for optimal flavor.
- Use high-quality chocolate chips for the best taste and creamy mousse texture.
