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Ultimate Chocolate Mousse Crunch Cake Recipe – A Decadent Dessert for Any Occasion


  • Author: David Andersson
  • Total Time: 4 hours 5 minutes (includes chilling)
  • Yield: 12 servings 1x
  • Diet: Vegetarian

Description

The Chocolate Mousse Crunch Cake is a luxurious dessert that combines layers of moist chocolate cake, a rich and silky chocolate mousse, crunchy toffee bits, and a glossy chocolate ganache. Each bite is a delightful blend of flavors and textures, from the smoothness of the mousse to the crunch of the toffee and the deep richness of the chocolate. This cake is not just a dessert; it’s an experience—a true treat for chocolate lovers.


Ingredients

Scale

Cake:

  • 1 box Devil’s Food Cake mix
  • Ingredients listed on the box (usually eggs, oil, water)

Chocolate Mousse:

  • 1 tsp unflavored gelatin
  • 1 tbsp cold water
  • 2 tbsp boiling water
  • ½ cup sugar
  • ¼ cup unsweetened cocoa powder
  • 1 cup whipping cream
  • 1 tsp vanilla extract

Crunch Layer:

  • 8 oz chocolate-covered toffee bits (like Heath bars), chopped

Ganache:

  • 8 oz semi-sweet chocolate
  • 8 oz heavy cream
  • 2 tsp butter

Instructions

  • Bake the cake Prepare cake mix according to package directions in two 8-inch round pans. Cool completely. You can freeze the layers if prepping ahead.
  • Make mousse
    • Soften gelatin in cold water for 1 minute.
    • Whisk in boiling water until dissolved. Let cool slightly.
    • Beat sugar, cocoa, cream, and vanilla until medium-stiff peaks form.
    • Mix in gelatin. Chill mousse for 30 minutes.
  • Prepare ganache
    • Heat cream until steaming. Pour over chopped chocolate and butter.
    • Let sit 3–4 minutes, then whisk until smooth. Cool slightly.
  • Assemble cake
    • Level cake layers. Place one on a serving plate.
    • Spread half the mousse, sprinkle with toffee bits.
    • Add second cake layer.
    • Spoon ganache over top, letting it drip down sides.
    • Sprinkle with more toffee bits.
  • Chill and serve Refrigerate until set. Optional: top with whipped cream before serving.

Notes

This Chocolate Mousse Crunch Cake is a true showstopper—rich, creamy, and with the perfect crunchy surprise in every bite. It’s an ideal dessert for birthdays, holidays, or whenever you want to treat yourself and your loved ones to something extra special.

  • Prep Time: 40 minutes
  • Cook Time: 25 minutes (for cake layer)
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice (1/12 of cake)
  • Calories: 520
  • Sugar: 42g
  • Sodium: 280mg
  • Fat: 34g
  • Saturated Fat: 18g
  • Unsaturated Fat: 14g
  • Trans Fat: 0g
  • Carbohydrates: 48g
  • Fiber: 3g
  • Protein: 6g
  • Cholesterol: High

Keywords: Chocolate mousse cake, Mousse crunch cake, Chocolate toffee cake, Decadent chocolate cake, Chocolate dessert cake