A luxurious chocolate dessert with a fudgy cake base and silky chocolate mousse topping — perfect for celebrations or romantic evenings.
For the Cake Layer:
¾ cup all-purpose flour
½ cup unsweetened cocoa powder
¾ tsp baking powder
¼ tsp salt
2 eggs
¾ cup sugar
⅓ cup melted butter or oil
½ cup buttermilk
1 tsp vanilla extract
For the Mousse Layer:
8 oz dark chocolate, chopped
1½ cups heavy cream
2 egg yolks
2 tbsp sugar
1 tsp gelatin + ¼ cup water (optional)
Optional Toppings:
Chocolate ganache
Whipped cream
Chocolate curls
Berries
Preheat oven to 350°F. Grease and line a springform pan.
Mix cake dry ingredients in one bowl, wet in another. Combine and pour into pan.
Bake 18–22 min. Cool completely.
Melt chocolate. Whip cream to soft peaks. Prepare gelatin if using.
Whisk egg yolks with sugar. Add gelatin (optional) and melted chocolate. Fold in cream.
Pour mousse over cake. Chill 4+ hours.
Release from pan and top with ganache or cream as desired.
Use good chocolate for best results.
Make ahead and chill overnight.
For clean slices, use a hot, dry knife.