Costco Tuxedo Cake Recipe

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The Costco Tuxedo Cake is a luxurious and decadent dessert featuring layers of rich chocolate mousse, creamy white chocolate mousse, and a dark chocolate ganache coating. This show-stopping cake is inspired by the beloved Costco Tuxedo Cake, known for its balance of textures and flavors that combine light and fluffy with smooth and rich. With its perfect layers and glossy finish, it’s an ideal dessert for any celebration or special occasion.

Origin:

The Tuxedo Cake is a popular dessert inspired by the rich flavors of chocolate and cream. It gained fame due to its availability at Costco and has since become a go-to treat for many. The cake combines elements of both a mousse cake and a layered cake, making it a luxurious choice for dessert lovers.

Ingredients:

For the Cake Layers:

  • 1 box (15.25 oz) chocolate cake mix (or homemade chocolate cake recipe)
  • 1 cup (240ml) water
  • 1/2 cup (120ml) vegetable oil
  • 3 large eggs

For the White Chocolate Mousse:

  • 8 oz (225g) white chocolate, chopped
  • 1 cup (240ml) heavy cream
  • 1/2 cup (120ml) whole milk
  • 1 teaspoon vanilla extract
  • 1 tablespoon powdered sugar (optional, for sweetness)

For the Chocolate Mousse:

  • 8 oz (225g) dark chocolate, chopped (semisweet or bittersweet)
  • 1 cup (240ml) heavy cream
  • 1 tablespoon powdered sugar (optional, for sweetness)

For the Chocolate Ganache:

  • 4 oz (115g) dark chocolate (semisweet or bittersweet), chopped
  • 1/2 cup (120ml) heavy cream
  • 1 tablespoon unsalted butter

For the Decoration:

  • Chocolate shavings or curls (optional)
  • Fresh berries or whipped cream (optional, for garnish)

Instructions:

Prepare the Cake Layers:

  1. Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  2. Prepare the chocolate cake mix according to the package instructions, using water, oil, and eggs.
  3. Divide the batter evenly between the two prepared cake pans and smooth the tops.
  4. Bake the cakes according to the package directions (typically 25-30 minutes), or until a toothpick inserted into the center comes out clean.
  5. Let the cakes cool in the pans for about 10 minutes, then turn them out onto a wire rack to cool completely.

Prepare the White Chocolate Mousse:

  1. Place the white chocolate in a heatproof bowl.
  2. In a small saucepan, heat the heavy cream and milk over medium heat until it just starts to simmer.
  3. Pour the hot cream mixture over the white chocolate and stir until the chocolate is completely melted and smooth.
  4. Let the mixture cool to room temperature, then refrigerate for 30-45 minutes until it thickens slightly.
  5. Once cooled, beat the white chocolate mixture with an electric mixer on medium speed until it thickens and holds soft peaks. If desired, add powdered sugar to taste.

Prepare the Chocolate Mousse:

  1. Place the dark chocolate in a heatproof bowl.
  2. In a small saucepan, heat the heavy cream over medium heat until it starts to simmer.
  3. Pour the hot cream over the dark chocolate and stir until smooth and melted.
  4. Let the chocolate mixture cool to room temperature, then refrigerate for 30 minutes.
  5. Once cooled, beat the mixture with an electric mixer on medium speed until it thickens and holds soft peaks. Add powdered sugar to taste, if desired.

Prepare the Chocolate Ganache:

  1. Place the chopped dark chocolate in a heatproof bowl.
  2. In a small saucepan, heat the heavy cream until it begins to simmer.
  3. Pour the hot cream over the chopped chocolate and stir until smooth and glossy.
  4. Stir in the butter for extra richness and gloss. Let the ganache cool slightly before using.

Assemble the Cake:

  1. Once the cake layers have completely cooled, slice each layer in half horizontally to create four thin layers.
  2. Place the first layer of cake on a serving platter. Spread a generous layer of white chocolate mousse over the cake.
  3. Add the second layer of cake, followed by a layer of chocolate mousse.
  4. Repeat the process until all layers are stacked, finishing with the final layer of cake on top.
  5. Carefully pour the chocolate ganache over the top of the cake, letting it drip down the sides to create a glossy finish.
  6. If desired, decorate the top with chocolate shavings or curls, and garnish with fresh berries or whipped cream.

Serve:

  1. Allow the cake to chill for 30 minutes before slicing to help the mousse set. Serve chilled for the best flavor and texture.

Tips for Success:

  • For a more decadent flavor, you can use high-quality chocolate for both the mousse and ganache layers.
  • Make sure the cake layers are completely cool before assembling to prevent the mousse from melting.
  • If you prefer a less sweet version, use a darker chocolate for both the mousse and ganache.
  • Chill the cake after assembling to ensure the mousse layers set properly.

Recommendations:

  • Pair the cake with a strong coffee or dessert wine, like a sweet red wine or port, to complement the rich flavors.
  • Leftover cake can be stored in an airtight container in the refrigerator for up to 3 days. Make sure to cover the cake with plastic wrap to maintain its moisture.

Nutrition (per serving, approximate for 12 servings):

  • Calories: ~500
  • Protein: 6g
  • Fat: 30g
  • Carbohydrates: 55g
  • Sugar: 45g
  • Fiber: 3g
  • Sodium: 200mg

Enjoy this Costco Tuxedo Cake recipe, a show-stopping dessert with layers of indulgent chocolate mousse, white chocolate mousse, and a smooth chocolate ganache that is sure to impress your guests!

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