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Chocolate Mousse Crunch Cake Recipe

This Chocolate Mousse Crunch Cake is so easy to make and full of amazing flavor. It is so yummy and only requires a few simple ingredients.
Prep Time15 mins
Cook Time25 mins
Total Time40 mins
Course: Dessert
Cuisine: American
Keyword: Easy Dessert Recipe, homemade cake
Servings: 10
Calories: 611kcal


  • Mixing Bowl
  • Cake Pans
  • Hand mixer


  • 15.25 ounces Devils Food Cake Mix we used Duncan Hines
  • 1 cup water (as called for with Duncan Hines)
  • 3 eggs (as called for with Duncan Hines)
  • cup vegetable oil (as called for with Duncan Hines)

Chocolate Mousse

  • 1 teaspoon unflavored gelatin
  • 1 Tablespoon cold water
  • 2 Tablespoons boiling water
  • ½ cup sugar
  • ¼ cup cocoa powder
  • 1 cup whipping cream
  • 1 teaspoon vanilla
  • 8 ounces Chocolate Covered Heath bits

Chocolate Ganache

  • 8 ounces semi sweet chocolate
  • 8 ounces heavy cream
  • 2 teaspoons butter


  • Bake cake according to cake mix instructions in 2 8 inch round pans. Allow to cool and set aside. This can be done several days in advance; just freeze the cakes when you're done.
  • In a small bowl, combine gelatin and cold water and allow to stand for about 1 minute. While gelatin is softening, bring 2 Tbsp. water to a boil in the microwave. Whisk into the softened gelatin and allow to cool slightly.
  • In a medium mixing bowl, combine sugar, cocoa powder, whipping cream, and vanilla. Beat with an electric mixer until medium-stiff peaks form. Mix in gelatin mixture and refrigerate for 30 minutes.
  • Prepare ganache according to directions.
  • With a serrated knife, carefully slice the dome-iest part of each cake layer off so the layers are level. Place one layer on the serving plate and spread about 1/2 of the chocolate mousse over the cake. Sprinkle with Heath bits.
  • Place second layer on top of Heath bits.
  • Spoon ganache over the top layer, allowing it to drip down the sides.  Sprinkle with additional Heath bits and refrigerate until ready to serve.

Chocolate Ganache

  • Place chocolate and butter in a glass or other heat safe bowl.
  • Heat cream in either the microwave or on the stove top until it’s steaming hot with bubbles around the edges, but not boiling.  Pour over the chocolate and let it sit undisturbed for 3-4 minutes.  Whisk until smooth.


If you buy a different brand of Devil's Food cake mix, follow the directions on the box.


Calories: 611kcal | Carbohydrates: 56g | Protein: 7g | Fat: 42g | Saturated Fat: 24g | Trans Fat: 1g | Cholesterol: 116mg | Sodium: 405mg | Potassium: 358mg | Fiber: 4g | Sugar: 35g | Vitamin A: 792IU | Vitamin C: 1mg | Calcium: 121mg | Iron: 4mg