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featured chocolate mousse cake

Chocolate Mousse Cake Recipe

Prep Time: 40 minutes
Cook Time: 15 minutes
Chill: 8 hours
Total Time: 8 hours 55 minutes
Servings: 10 people
Chocolate Mousse Cake is a chocolate lover's dream come true! Simple chocolate box cake is dressed up deliciously with a thick layer of chocolate mousse and decadent ganache.
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Ingredients

For the Cake

  • 1/2 box devils food cake or chocolate cake baked & cooled in a 9- or 10-inch springform pan (or if you have a chocolate cake recipe you can link to that)

For the Chocolate Mousse

  • 2 teaspoons powdered plain gelatin (1⁄4 oz)
  • 2 1/2 tablespoons cold water
  • 2 1/4 cups chocolate finely chopped (or chocolate chips) 3 cups heavy cream, divided
  • 1/2 cup powdered sugar

For the Ganache

  • 2/3 cup heavy cream
  • 8 ounces chocolate finely chopped (or chocolate chips) Chocolate shavings, for garnish
  • Fresh berries for garnish

Instructions

For the Cake

  • Prepare one layer of chocolate cake, baking it in a 9- or 10-inch springform pan. Allow to cool completely in the pan.

For the Chocolate Mousse

  • In a small bowl, combine gelatin and cold water and bloom for 5-10 minutes.
    ingredients for chocolate mousse
  • Meanwhile, place chopped chocolate in a heatproof bowl. In a small saucepan set over medium-high heat, bring 1 cup of heavy cream to a simmer (between 112-115 degrees F), then remove from heat.
  • Whisk in bloomed gelatin and stir until completely dissolved. Pour mixture over the chopped chocolate and whisk until melted and combined. Allow mixture to cool, stirring occasionally.
    heavy cream and chocolate chips in a glass bowl
  • In the bowl of a stand mixer fitted with a whisk attachment, or with a hand mixer in a large bowl, beat remaining 2 cups cream with powdered sugar until stiff peaks form.
    making chocolate mousse
  • Stir ~1/4 cup of the whipped cream into the melted chocolate. Gently fold in the remaining whipped cream until fully incorporated.
    chocolate mousse in a bowl with a spatula
  • Spread the chocolate mousse evenly on top of the cooled cake while still inside the pan.
    chocolate mousse layer spread on top of chocolate cake
  • Cover with plastic wrap and refrigerate overnight.

For the Ganache

  • Place chopped chocolate in a heatproof bowl. In a small saucepan set over medium-high heat, bring 1 cup of heavy cream to a simmer (between 112-115 degrees F), then remove from heat.
  • Pour warm cream over chocolate chips and allow to sit for 3-4 minutes, then whisk gently until smooth and shiny. Allow to cool until slightly thickened, then pour over the mousse.
  • Cover and chill for 1 hour. Serve garnished with chocolate shavings and berries, if desired.