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Bittersweet Dark Chocolate Mousse Cake with Silky Layers Recipe

Bittersweet Dark Chocolate Mousse Cake with Silky Layers Recipe

4.7 from 22 reviews

Indulge in the decadent delight of this Bittersweet Dark Chocolate Mousse Cake. Layers of rich chocolate cake and silky dark chocolate mousse create a luxurious dessert sure to impress.

Ingredients

Scale

Cake Layer:

  • 3/4 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 2/3 cup brown sugar
  • 2 large eggs
  • 1/3 cup sour cream
  • 1/3 cup vegetable oil
  • 1/2 teaspoon vanilla extract
  • 1/2 cup hot water or coffee (for enhanced chocolate flavor)

Dark Chocolate Mousse:

  • 8 oz high-quality dark chocolate (70% cocoa or higher), chopped
  • 2 tablespoons unsalted butter
  • 1 1/2 cups heavy cream, divided
  • 2 tablespoons powdered sugar
  • 1 teaspoon vanilla extract
  • Pinch of salt

Optional Toppings:

  • Shaved dark chocolate
  • Cocoa powder dusting
  • Fresh berries (e.g., raspberries or blackberries)

Instructions

  1. Preheat oven to 350°F (175°C). Grease and line an 8-inch round cake pan with parchment paper.
  2. In a large bowl, sift together flour, cocoa powder, baking powder, baking soda, and salt.
  3. In a separate bowl, whisk together brown sugar, eggs, sour cream, oil, and vanilla until smooth.
  4. Gradually add dry ingredients to wet ingredients, alternating with hot water (or coffee), mixing until combined.
  5. Pour batter into prepared pan and bake for 22–25 minutes, or until a toothpick inserted in the center comes out clean. Let cool completely.
  6. For the mousse, melt dark chocolate and butter in a heatproof bowl over simmering water (double boiler), stirring until smooth. Remove from heat and let cool slightly.
  7. In a mixing bowl, whip 1 cup heavy cream with powdered sugar, vanilla, and salt until soft peaks form.
  8. Fold whipped cream into the cooled melted chocolate gently until fully combined and smooth.
  9. In another bowl, whip the remaining 1/2 cup heavy cream until stiff peaks form and gently fold into the mousse.
  10. Spread mousse evenly over the cooled cake. Refrigerate at least 4 hours or overnight to set.
  11. Garnish with dark chocolate shavings or berries before serving.

Nutrition

Keywords: Chocolate Mousse Cake, Dark Chocolate Cake, Dessert Recipe, Chocolate Dessert