Raspberry Chocolate Mousse Cake

BY:

Rachel


Raspberry Filled Chocolate Mousse Cake | KitchenCents.com

Raspberry-Filled Chocolate Mousse Cake

Yield: 12 servings
Prep Time: 30 minutes
Chill Time: 2 hours
Total Time: 2 hours 30 minutes

Sweet fresh raspberry filling between layers of moist chocolate cake, covered in rich 3-ingredient chocolate mousse, and topped with silky chocolate ganache.

Ingredients

  • 2 8-inch round chocolate cakes, cooled
  • 1 6-oz carton fresh raspberries, for garnish

3-ingredient Chocolate Mousse (need about 3 cups):

  • 2 cups cold heavy whipping cream *see notes*
  • 1/2 cup cocoa powder, sifted
  • 2/3 cup powdered sugar
  • 1/2 teaspoon almond extract, optional

Raspberry Buttercream (need about 1.5-2 cups):

  • 1/3 cup salted butter
  • 3-4 cups powdered sugar
  • 4 oz fresh raspberries, about 2/3 cup
  • 3-4 Tablespoons heavy whipping cream (about a 1/4 cup)

Chocolate Ganache:

  • 1/2 cup chocolate chips
  • 1/4 cup heavy whipping cream

Instructions

Cakes:

  1. I use a regular chocolate box cake, "doctored up."  I switch the oil for butter, milk in place of water, add an extra egg, 1 teaspoon of vanilla extract, and a 1/2 cup of sour cream, yogurt, OR pudding (whichever I have on hand at the time).  These minor changes "doctor" up the box cake and make it taste a lot better.  You can doctor up your box cake or make it as instructed.  Make two 8-inch round cakes and let them cool completely.

Chocolate Mousse:

  1. In a chilled mixing bowl, begin whipping cream. Whip until frothy and slightly thicken.
  2. Add powdered sugar and cocoa powder. Carefully mix until soft peaks form.
  3. Add almond extract if desired.
  4. Whip until stiff peaks form.
  5. Refrigerate until ready to use.

Raspberry Buttercream (or Raspberry Mousse, see notes):

  1. In a bowl, mix the salted butter and powdered sugar together.
  2. Add the fresh raspberries and vanilla extract.  Blend until the raspberries are completely mixed in.  The buttercream should be a little on the thick side.
  3. Add cream and whip for 1-2 minutes.  If the buttercream isn't stiff enough, add a little extra sugar.  If too stiff, add a little extra cream.  You what the consistency stiff enough to hold the cake without oozing out the sides but thin enough to be able to spread it onto the cake and over the whole raspberries.
  4. Set aside until ready to use.

Chocolate Ganache:

  1. Heat in the microwave for 30 seconds.  Stir.  Heat for another 15-30 seconds and stir until the melted chocolate is completely mixed in with the cream. This may take up to a minute or two of stirring to combine completely.

To assemble:

  1. Using a long serrated knife, level the top of one cake round. Place the bottom (leveled cake round) onto the center of the plate or cake stand.  Add a layer of raspberry buttercream on top of the bottom cake layer.
  2. Add a layer of fresh raspberries that will become part of the middle filling.  Start placing the raspberries about 3/4-inch from the edge working your way to the center and push the raspberries down into the layer. This will help secure the raspberries for the top layer of buttercream.
  3. Next, add a thin layer of the raspberry buttercream, just enough to cover the fresh raspberries. Smooth out.
  4. Place the second cake round onto, lightly pressing down to ensure it is level.
  5. Using a pastry knife, smooth the raspberry buttercream around the edge to make the two cake rounds flush.
  6. For best results, chill for at least 1 hour to allow the buttercream to set.  This will make covering the cake with mousse much easier.
  7. After chilling, completely cover cake with chocolate mousse. Smooth out the lay of mousse.
  8. Again, for best results, chill for another 30 minutes to 1 hour before adding ganache. This will help the ganache cool quicker after adding to the cake to allow you to get the pretty "side drips."
  9. Add chocolate ganache. Pour ganache from the center to the edge allowing some to drip down the sides. Use the back of a spoon to smooth and spread if needed.
  10. Refrigerate until ready to serve.
  11. Add fresh raspberries on top and around the bottom of the cake right before serving.

Notes

  • Use HEAVY whipping cream if possible. This will allow you to get a stiffer whip which will offer additional stability to your mousse. I recommend using heavy whipping cream (at least 36% fat) vs whipping cream (only contains 30-35% fat) because it will whip stiffer. If you can't find heavy whipping cream, you can use regular whipping cream, your mousse may not be as "stable" or thick but will still taste great.
  • The total amount of heavy whipping cream needed for this recipe is a little more than 2 1/2 cups. (If making raspberry mousse in place of raspberry buttercream the amount of cream needed will be more).
  • To keep your cake stand clean and pretty, use pieces of waxed paper around the edge to avoid getting excess mousse on the cake stand.   I also like to add a dollop of buttercream in the center of the plate to help it stay put.
  • If you're not a fan of buttercream you can use my RASPBERRY MOUSSE RECIPE in place of the buttercream. Once we tried this cake recipe with raspberry mousse filling, it's now our favorite way to make it. You can find the raspberry mousse recipe here --> https://kitchencents.com/easy-raspberry-mousse/

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OP: 1.26.17                            Updated: 6.14.20

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