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Rich Chocolate Mousse Cake

This deliciously rich Chocolate Mousse Cake recipe is everything a cake lover can ask for! The moist chocolate cake layers with a sweet generous mousse filling, it’s an elegant and beautiful cake yet so easy to make.
Prep Time: 30 minutes
Cook Time: 15 minutes
Total Time: 45 minutes
Servings: 12 servings
Author: Valentina

Ingredients

chocolate cake-

  • 2 cups all-purpose flour, measured then sifted
  • 3/4 cup cocoa powder
  • 1 ½ tsp baking soda
  • 1 ½ tsp baking powder
  • 1 tsp salt
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 2/3 cup oil
  • 2 tsp vanilla extract
  • 1 cup warm coffee
  • 1/3 cup sour cream

cake soaking-

chocolate mousse cake filling-

  • 1/3 cup hot water
  • 1/4 cup cocoa powder
  • 6 oz chocolate chip morsels
  • 8 oz cream cheese, room temp
  • 1/2 cup powdered sugar
  • ½ tsp vanilla extract
  • 1 1/2 cup heavy whipping cream

Instructions

How to make chocolate cake-

  • Preheat the oven to 350°F and line four 9-inch round baking pans with parchment paper, spray the sides with baking spray.
  • In a large bowl, sift together the flour, cocoa powder, baking soda, baking powder, and salt. Set aside.
  • In a separate bowl, whisk together sugar and eggs until combined.
  • Add in the oil, vanilla, warm coffee, and sour cream and mix until combined.
  • Combine the dry ingredients with the wet ingredients. Divide the cake batter evenly between the 4 prepared cake pans.
  • Bake for 15-17 minutes, until cooked and toothpick comes out clean.
  • Allow the cake layers to cool completely on a cooling rack.

How to make chocolate mousse frosting-

  • Combine the hot water and cocoa powder in bowl.
  • Add the chocolate chip morsels into a bowl and melt.
  • Once the chocolate chips are melted, add to the cocoa powder mixture and mix until well combined.
  • In a separate bowl, beat the cream cheese with a blender until creamy. Add the powdered sugar and vanilla and mix to combine.
  • Add the chocolate mixture to the cream cheese mixture and mix.
  • In a separate bowl, whisk the heavy whipping cream with a blender until fluffy and thick. Gently mix the heavy whipping cream with the chocolate cream cheese mixture on high until a fluffy chocolate mousse frosting is formed.

How to assemble the chocolate mousse cake-

  • Once the chocolate cake layers are cooled, place one layer onto the cake stand.
  • Add the cake soaking mixture to a squeezable bottle.
  • Squeeze some of the soaking mixture all over the chocolate cake then top with some mousse filling. Top with the second cake layer.
  • Repeat the process with all the layers and mousse frosting. Cover the sides and tops with the mousse filling and then decorate as desired.
  • Refrigerate until ready to serve. Slice and enjoy!