Ingredients
Equipment
Method
Preparation
- Preheat your oven to 350°F (175°C). Grease two 8-inch round cake pans with butter or cooking spray and dust with flour.
- In a large mixing bowl, sift together all-purpose flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt.
- In another bowl, mix buttermilk, vegetable oil, eggs, and vanilla extract. Incorporate the dry mix, then add boiling water.
- Divide the batter between pans and bake for 35-40 minutes. Cool in pans for 10 minutes, then transfer to wire racks.
Make the Mousse
- For dark chocolate mousse, melt semi-sweet chocolate and unsalted butter in a heatproof bowl over simmering water. Whisk egg yolks and set aside.
- Whip heavy cream and egg whites separately until stiff peaks form. Fold melted chocolate with yolks and then incorporate whipped cream and egg whites.
- For white chocolate mousse, melt white chocolate similarly and repeat whisking and folding process.
Finalize Cake
- Heat heavy cream until simmering, pour over chopped semi-sweet chocolate, and stir until smooth to make ganache.
- Once cakes are cool, slice each in half horizontally, layering with dark and white mousse in between. Top with ganache.
- Chill the assembled cake for at least 60 minutes.
- Drizzle remaining ganache and add chocolate shavings for decoration before serving.
Nutrition
Notes
Use high-quality chocolate for best results. Allow chilling time for flavors to meld.
