A cake with berries on top sits on a table

Costco Chocolate Mousse Cake: Irresistible Delight

Chocolate Mousse Cake from Costco can be considered a Prestige Item, for the reason that they came out with the right quantity of dark chocolate to the texture just like a mousse. What is the most interesting secret that you will discover is that the process of making this creamy amazing party dessert will be much simpler and straightforward, assuming that the unique aspect with which you will leave both yourself and other people whelmed is beautiful. This is where the directions and steps take place so that a person can prepare the house-made chocolate mousse cake and comes with a close resemblance of the Costco famous one.

What is Costco Chocolate Mousse Cake

Costco sells a popular chocolate mousse cake that goes by a couple of names: Aristocratic Tuxedo Chocolate Mousse Cake, Chocolate Mousse Cake, or Canapé (Finger) Mousse, Apple Tarts. It claims the people’s liking, delivering the taste sensation of rich chocolate and gently implying the creaminess.

Nutrition in Costco Chocolate Mousse Cake

NutrientAmountDaily Value (DV)
Calories320-39015% – 20%
Total Fat15-18 g23-27%
* Saturated Fat8-13 g40-65%
* Trans Fat0.5 gnegligible
Cholesterol60 mg20%
Sodium315 mg13%
Total Carbohydrates45-57 g15-19%
* Net Carbs (approx)45-57 g(not labeled on most sources)
* Sugars36-40 g36-40%
Protein3-5.4 g6-11%pen_spark

Ingredients To Make Costco Chocolate Mousse Cake

  • For the cake layers:
    • Flour
    • Cocoa powder
    • Sugar
    • Eggs
    • Butter
  • For the chocolate mousse filling:
    • Heavy cream
    • Chocolate
    • Eggs
  • For the frosting:
    • Chocolate
    • Butter
    • Powdered sugar
    • Milk

Baking Equipment Needed

  • Mixing bowls
  • Electric mixer or stand mixer
  • Cake pans
  • Spatula
  • Whisk
  • These items also include piping bags and tips (for frosting decoration – optional).

How To Make Costco Chocolate Mousse Cake

Making the Chocolate Cake

First of all, list the things you’ll need for the chocolate cake. Use our AI to write a humanized version of the given sentence. Time to put the white flour, cocoa powder, baking soda, butter, sugar, eggs, and vanilla extract in hand.

  1. First, beat together in another bowl the dry ingredients: the flour, the cocoa powder, and the baking soda.
  2. In another bowl, mix the butter and sugar until the color is pale and still.
  3. Add one egg at a time, beating vigorously before adding the next complete. Thereafter, add some vanilla extract.
  4. In the meantime, combine dry ingredients in a separate bowl and gradually fold them into the wet one until completely combined.
  5. Scoop out the batter and bake for 40 minutes, turning the temperature to medium accordingly, until an inserted toothpick comes out clean.

Preparing the Chocolate Mousse

Moving along the chocolate mousse recipe, then. However, then you will need chocolate, butter, eggs, sugar, vanilla extract, and whipped cream.

  1. Melt together chocolate and butter in a heatproof bowl placed above a pot with simmering water stirring with a spoon until the mixture is smooth.
  2. In another bowl whisk together the sugar and vanilla extract in egg yolks, and cook down on low heat until thickened.
  3. Keep away from fire and chop the chocolate with egg one up by up till they are well combined.
  4. In the meantime, whip the cream with your mixer until the peaks are stiff enough. Gently fold in the whipped cream, making sure to finish before it becomes runny.
  5. Make the chocolate mousse first while reserving it and start to prepare the cake layers.

Optional: Preparing the White Chocolate Mousse

The main ingredient of the White Chocolate Mousse is the white chocolate which we will melt and cool.

  1. Make the white chocolate mousse layer (if you’re using such) as a normal mousse; use white chocolate, butter, whipped cream cheese, and whipped cream as the ingredients.
  2. First, melt both white chocolate and butter and then let the entire contents cool down for a few minutes.
  3. In a different bowl, beat the creamed cheese and mascarpone cheese separately until they are lump-free.
  4. Fold the chocolate white further into the whipped cream cheese, always make sure you incorporate it properly.
  5. However, in another bowl, whip the cream until stiff peaks are reached. SLT the whipped cream gently into the white chocolate mixture.

Assembling the Cake

Cake layers that we have to set up are the next step.

  1. On a cake stand, you set one of the cooled layers.
  2. Pour a chocolate mousse of abundant thickness above the cake layer.
  3. Gently add the second layer of cake on the surface of the mousse.
  4. In case that is needed, blow a white chocolate mousse on the second cake layer.

Frosting the Cake

Finally, frost the whole cake with a chocolate ganache and smoothen it.

  1. Heat heavy cream stirring until tiny bubbles start showing on the surface. Take it off heat then pour it over chopped chocolate.
  2. Stir until smooth and glossy.
  3. It’s time—to pour the ganache over the cake fragments so that it form lovely drips on the confectionery edges.

Tips and Tricks for Successful Cake Making

Achieving the perfect Costco Chocolate Mousse Cake requires attention to detail and some handy tips:

  • Use high-quality chocolate powder for the most delicious chocolate.
  • Don’t over-mix the batter to have a better texture.
  • Since the eggs will have a better mixing if they are at room temperature, be careful to ensure that they are not cold.
  • When whipping fresh cream for the mousse, stop before it gets too stiff and clumpy.
  • If your frosting does look too thick, incorporate the tablespoons of the milk you need for it to be smooth and spreadable.
  • Make your cake special by covering it with chocolate chips, fresh fruits, or a whipped cream topping.

Serving and Presentation Ideas

When your mousse cake is assembled and chilled, you are now able to bring it to the table and dazzle your guests. Consider these presentation ideas:

  • The use of chocolate shavings as a topping will add an air of sophistication to the cake.
  • Bring in a bit of color and liveliness with a few varieties of fresh berries.
  • Slice some cake on the plate and put a quenelle of whipped cream on the side to make it more exquisite.


You might want to attempt making your own Costco Chocolate Mousse Cake at home if you are looking for the satisfaction of making a good dessert that is also impressive. Adhering to the steps illustrated in this article and using our tips and tricks, you can now whip up a mouth-watering dessert that will not only taste amazingly delectable but will also leave all your guests wanting more.

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