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Dark Chocolate Mousse Cake

An indulgent dessert combining layers of smooth dark chocolate mousse with a chocolate cake base, perfect for impressing guests or enjoying as a treat.
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Prep Time 30 minutes
Total Time 4 hours
Servings: 8 servings
Course: Cake, Dessert
Cuisine: American, French
Calories: 450
Ingredients Method Notes

Ingredients
  

For the mousse
  • 1 cup dark chocolate, chopped Use high-percentage dark chocolate for deeper flavors.
  • 4 tablespoons unsalted butter
  • 3 large eggs, separated Use room temperature eggs for fluffier whites.
  • 1/2 cup sugar
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1 cup heavy cream Substitute with coconut cream for a vegan version.
For the cake
  • 1 whole chocolate cake Store-bought or homemade.
For the topping
  • 1 cup chocolate ganache Use for topping once mousse is set.

Method
 

Preparation
  1. Preheat the oven to 350°F (175°C). Grease and flour a cake pan.
  2. In a double boiler or microwave, melt the dark chocolate and butter together until smooth. Allow to cool slightly.
  3. In a bowl, whisk the egg yolks with sugar, vanilla, and salt until thick and pale. Stir in the melted chocolate mixture.
  4. In a separate bowl, whip the heavy cream until soft peaks form. Fold the whipped cream into the chocolate mixture gently.
  5. Beat the egg whites until stiff peaks form, then fold them into the mixture.
Assembly
  1. Pour the mousse into the prepared cake pan, over the chocolate cake layer if you’re using one.
  2. Chill for at least 4 hours or until set.
  3. Once set, top with chocolate ganache and serve.

Notes

Serve with a dollop of whipped cream and chocolate shavings. Pair with vanilla ice cream or raspberry sauce for added flavor.