Chocolate Frozen Mousse Cake
Desserts

Chocolate Frozen Mousse Cake

ML
By Marie Lefebvre · Updated October 18, 2026

A show-stopping no-bake frozen dessert with a silky chocolate sauce base and a light, airy mousse filling. Perfect for parties and hot summer days, this make-ahead cake serves a crowd effortlessly and keeps beautifully in the freezer for up to a week.

Prep⏱️ 144 min
Servings👥 20 servings
Difficulty📊 Easy
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🛒 Ingredients

20 servings

20
  • 5 tablespoons unsweetened cocoa powder
  • 7 tablespoons water
  • 4 egg yolks
  • 1 can sweetened condensed milk (14 oz / 397 g)
  • 1¾ cups whole milk
  • 4 egg whites
  • ¾ cup heavy cream
  • 5 tablespoons sugar

Directions

  1. 1

    In a small saucepan, combine cocoa powder and water, stirring until fully dissolved. Heat over medium, stirring constantly, until the sauce thickens.

  2. 2

    Pour the chocolate sauce into the bottom of a lightly greased bundt or ring mold and freeze until firm.

  3. 3

    In a blender, combine egg yolks, condensed milk, and whole milk. Blend until smooth and uniform.

  4. 4

    Pour the mixture into a saucepan and cook over low heat, stirring constantly, until thickened into a custard. Do not let it boil — this keeps the texture creamy.

  5. 5

    Set the pan in a bowl of cold water and stir until the custard cools completely.

  6. 6

    In a clean bowl, beat egg whites with sugar until stiff, glossy peaks form.

  7. 7

    Whip the heavy cream to soft peaks.

  8. 8

    Gently fold the whipped cream into the cooled custard, then carefully fold in the beaten egg whites with circular motions.

  9. 9

    Pour the mousse over the frozen chocolate layer in the mold, smooth the top, and freeze for at least 4 hours.

  10. 10

    To unmold, dip the base of the mold briefly in hot water, then invert onto a serving plate.

💡 Chef's Tip

Decorate with chocolate shavings, sprinkles, or a drizzle of warm chocolate sauce just before serving. For a richer flavor, use dark cocoa powder.