Costco Tuxedo Cake Recipe Chocolate Mousse Copycat

I’ve always marveled at the incredible tuxedo cake from Costco, a dessert that seems perfectly suited for any special occasion. This cake is an embodiment of indulgence with its luxurious layers of chocolate, marrying the richness of dark chocolate with the smoothness of white chocolate in a way that creates a truly showstopping dessert. It’s not just the visual appeal that captures one’s attention—it’s the intricate balance of flavors that makes each bite an experience to remember.

A Costco Tuxedo cake sits on a white porcelain cake stand, adorned with chocolate shavings and a layer of creamy frosting

When I think about recreating this confection at home, it’s not just about replicating a recipe—it’s about bringing a piece of that celebration into my own kitchen. The process isn’t just about baking; it’s an art that involves careful layering, blending, and crafting. My aim is to achieve that same symphony of tastes that the Costco tuxedo cake offers, ensuring that each layer of chocolate mousse and cake complements the others perfectly.

There’s something special about constructing a dessert that evokes such admiration from friends and family. For me, creating a tuxedo cake is about more than following a recipe—it’s about weaving together the right techniques and ingredients to honor the original while imprinting my own touches. Each time I serve this cake, it’s a celebration, turning an ordinary day into a remarkable one.

Ingredients and Preparation

When crafting the indulgent Costco Tuxedo Cake at home, I ensure that all ingredients, particularly those like the cream cheese and the eggs, are at room temperature to achieve a seamless blend. The precise combination of high-quality elements is divided into three key components: dry ingredients for the cake layers, a silky chocolate ganache, and luxurious mousse elements for the filling.

Dry Ingredients

For the dark chocolate cake layers, I rely on a sifted mixture of all-purpose flour and rich cocoa powder. My recipe incorporates a measured amount of baking powder and a pinch of salt, plus the subtle kick of espresso powder to intensify the chocolate flavor. Here’s a simple breakdown:

  • Flour: 2 cups, sifted
  • Cocoa Powder: 3/4 cup, sifted
  • Baking Powder: 2 tsp
  • Espresso Powder: 1 tsp
  • Salt: 1/2 tsp

Chocolate Ganache Components

The luscious dark chocolate ganache topping requires minimal but high-quality components. I use finely chopped dark chocolate and mix it with steaming heavy cream until it’s smooth and glossy. Sometimes, I add a touch of butter for added richness.

  • Dark Chocolate: 8 ounces, finely chopped
  • Heavy Cream: 1 cup
  • Butter (optional): 2 tbsp

Mousse Elements

For the white chocolate mousse, I gently melt white chocolate and combine it with and sour cream to create a smooth base. The heavy cream is then whipped to stiff peaks and folded into the base for an airy consistency. The dark chocolate mousse follows a similar process, with egg yolks contributing to a richer texture.

  • White Chocolate: 4 ounces, melted
  • Sour Cream: 1/4 cup
  • Heavy Cream: 1 1/2 cups, whipped to peaks
  • Egg Yolks: 3 large, for dark chocolate mousse

Each ingredient is carefully measured and prepped to ensure the final product is a decadent homage to the original Costco Tuxedo Cake.

Baking the Cake

When making the Costco Tuxedo Cake, the baking process is crucial to achieving that decadent, multi-layered dessert we all love. It begins with preheating my oven to a precise 350°F. This is the sweet spot for ensuring my chocolate cake layers bake evenly without overbrowning.

Next, I prepare two 8-inch cake pans, greasing them well and lining with parchment paper. This step is important to prevent sticking and allows the baked cakes to release easily. For the chocolate batter, I carefully divide it between the pans. It’s essential to distribute it evenly so that the dark chocolate cake layers rise uniformly and have the same thickness after baking.

1Preheat Oven350°F
2Prepare PansGrease and line with parchment
3Divide BatterDistribute evenly between the pans

For this cake, we are indulging in different layers that contrast not just in flavor but also in texture. For the vanilla cake or white layers, the process is much the same, though it’s crucial I keep the batters separate to maintain the integrity of each distinctive layer.

While baking, I ensure not to open the oven door too often as this can cause fluctuations in temperature and can affect the cakes’ rise. Once the chocolate and vanilla layers pass the toothpick test (coming out clean after being inserted into the center), I remove them from the oven and let them cool on a wire rack.

The goal is to create a harmonious balance between the velvety chocolate layers and the lighter, creamy white layers. Once assembled and baked, the different layers create a visually stunning and deliciously rich dessert experience, where every slice reveals a perfect cross-section of the Tuxedo Cake’s chocolate and vanilla elegance.

Assembling the Layers

Layers of chocolate cake, frosting, and chocolate shavings are carefully stacked on top of each other to create the decadent Costco tuxedo cake

When I create a Costco tuxedo cake, every layer matters. The base is a chocolate buttercream which sets the stage for the decadent layers of cake. Here’s how I assemble the layers for that perfect slice:

  • Bottom Layer: I indulge in a rich, bold chocolate cake, ensuring it’s leveled so the layers stack neatly. Upon this, I spread a generous amount of creamy chocolate mousse for a contrasting texture.

  • Middle Layer: Next comes the cheesecake layer, a divine addition that provides a slightly tangy break from the chocolate. This layer melds beautifully with the mousse beneath.

  • Top Cake Layer: Another chocolate cake layer follows, aligning it carefully over the cheesecake. Precision is key to maintaining an even stack.

  • White Chocolate Filling: Now, for a touch of elegance, a layer of white chocolate filling is smoothed over the top cake layer. This creamy sweetness contrasts the dark chocolate layers.

For a striking visual, I ensure the sides are neat, shaving off any uneven edges. Finally, the top layer is finished with a silky chocolate buttercream. Here, I employ an offset spatula for a smooth, professional appearance. Each slice now features the symphony of contrasting flavors and textures that make this cake a memorable treat.

Remember to chill the cake between steps if the fillings are too soft, to maintain the integrity of each layer. Patience is just as crucial as precision in achieving that show-stopping finish.

Decorating the Tuxedo Cake

A baker carefully spreads chocolate ganache over the smooth surface of the Tuxedo Cake, adding elegant swirls and patterns with a piping bag

After preparing the multiple layers and assembling your Tuxedo Cake, we reach the truly creative stage: decorating. Decorating is not just an art; it’s the final touch that enhances both the look and taste of your cake.

I start by spreading a white chocolate ganache over the top of the cake, ensuring a smooth and even layer. It’s important for the ganache to be thick enough to create a luxurious texture but fluid enough to spread. Here’s a quick breakdown of the ganache application:

  • Heat heavy cream until hot but not boiling.
  • Pour over white chocolate chunks and let sit for a few minutes.
  • Whisk until the mixture is smooth.
  • Allow cooling until it reaches the desired thickness.

For a polished look, I pay attention to the edge of the cake. If any ganache has dripped over, I use a spatula or scraper to clean the edges, keeping it sharp and neat.

To add a professional touch, I transfer the cake onto a serving plate before decorating. This avoids any messy transfers after the cake is completed, and ensures a seamless presentation. A turntable can be handy here, making the decorating process easier.

Here’s a simple way to finish the decorative topping:

  • Piping: Use a piping bag and tip to create swirls or rosettes on top.
  • Chocolate accents: Chocolate curls or shards add texture and flair.
  • Edible embellishments: Sprinkles, cocoa nibs, or fruits can be placed carefully on the ganache.

Remember, while the full recipe provides guidelines, your decorating style is unique to you. Trust your instincts and your Tuxedo Cake will not only look stunning but will be a personal masterpiece.

Serving and Storage

A Costco tuxedo cake sits on a white platter, surrounded by fresh berries and a dollop of whipped cream. The cake is richly layered with chocolate and vanilla, topped with chocolate shavings

When I serve the Costco Tuxedo Cake, I pay special attention to presentation. To begin, I select a serving plate that complements the elegant layers of the cake. For a personal touch, especially if it’s a birthday cake or for a festive occasion like Christmas, I might add decorations relevant to the theme.

To keep the cake moist and protect its layers of cream cheese frosting and chocolate ganache, I cover any leftovers with plastic wrap. It’s essential to ensure the wrapping is tight to keep air out, which can dry out the cake. In terms of storage, the cake should be refrigerated due to its cream cheese content. A properly refrigerated cake can last for up to five days.

Here’s a quick table on how to store your cake:

ConditionStorage MethodDuration
Before servingRefrigerate until readyUp to 2 hours
After servingCovered with plastic wrapUp to 5 days
Freezing (if needed)Wrapped in plastic, then aluminum foilUp to 2 months

Remember, if you’re sampling a slice or two before a big event, carefully cut pieces so the remaining cake maintains its appealing appearance. I also advise removing the cake from the fridge about 20 minutes before serving, as this allows it to come to room temperature, delivering the best flavor and texture.

Lastly, for those special Christmas tuxedo chocolate mousse cakes, I garnish with festive berries or mint right before serving for that extra yuletide cheer.

Frequently Asked Questions

In this section, I’ll address some of the most common inquiries about creating a tuxedo cake similar to the celebrated version found at Costco.

What are the key ingredients in a tuxedo cake similar to the one from Costco?

The key ingredients of a tuxedo cake include moist chocolate cake, cream cheese frosting, chocolate ganache, and a chocolate glaze. The layers of cream cheese frosting and chocolate ganache are signature features.

How can I replicate Costco’s tuxedo cake at home?

To replicate Costco’s Tuxedo cake at home, you’ll need to prepare each component—the chocolate cake layers, cream cheese frosting, chocolate ganache, and glaze—and assemble them in the structured order that creates the tuxedo effect.

What is the serving size for a homemade cake comparable to the Costco tuxedo cake?

A homemade cake comparable to the Costco tuxedo cake would typically serve around 12-16 people, depending on the slice size.

Can you provide a step-by-step guide for assembling the layers of a tuxedo cake?

Yes, assembling a tuxedo cake involves starting with a chocolate cake base, adding a layer of cream cheese frosting, followed by a layer of chocolate ganache, repeating the layers, and finishing with a chocolate glaze. Careful handling is key to maintaining the layers’ integrity.

What is the nutritional content of a typical tuxedo cake?

The nutritional content varies, but a typical tuxedo cake contains a significant amount of calories, sugar, and fat due to its rich ingredients like butter, chocolate, and cream cheese. Individual recipes may vary.

What variations can be made to the classic tuxedo cake recipe to cater to different dietary preferences?

Variations of the classic tuxedo cake recipe can include using gluten-free flour, alternative sweeteners, or dairy-free substitutes to cater to dietary preferences. Some creators also add distinctive flavors or use decorative techniques to customize the cake.

Costco Tuxedo Cake Copycat

Recipe by kitcheneasylifeCourse: DessertCuisine: AmericanDifficulty: Easy


Prep time


Cooking time



Decadent chocolate, creamy mousse, and rich cake all in a beautifully elegant dessert.


  • For the cake:

  • 2 cups all-purpose flour

  • 2 cups granulated sugar

  • 3/4 cup unsweetened cocoa powder

  • 2 teaspoons baking powder

  • 1 1/2 teaspoons baking soda

  • 1 teaspoon salt

  • 2 large eggs

  • 1 cup whole milk

  • 1/2 cup vegetable oil

  • 2 teaspoons pure vanilla extract

  • 1 cup boiling water

  • For the filling and frosting:

  • 1 1/2 cups heavy cream

  • 12 ounces semisweet chocolate, chopped

  • 1/4 cup unsalted butter, softened

  • 1 teaspoon pure vanilla extract

  • 1/4 cup powdered sugar


  • Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
  • In a large bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt. Add the eggs, milk, oil, and vanilla extract, and beat on medium speed for 2 minutes. Stir in the boiling water until the batter is well combined.
  • Pour the batter evenly into the prepared pans. Bake for 30 to 35 minutes, or until a toothpick inserted into the center comes out clean. Allow the cakes to cool in the pans for 10 minutes, then transfer them to a wire rack to cool completely.
  • To make the filling and frosting, heat the heavy cream in a saucepan over medium heat until it just begins to simmer. Place the chopped chocolate in a heatproof bowl, and pour the hot cream over the chocolate. Let it sit for 5 minutes, then stir until smooth. Allow the ganache to cool to room temperature.
  • In a separate bowl, beat the softened butter, vanilla extract, and powdered sugar until light and fluffy. Gently fold the cooled ganache into the butter mixture until well combined.
  • To assemble the cake, place one cake layer on a serving plate. Spread a layer of the ganache filling on top. Place the second cake layer on top, and frost the top and sides of the cake with the remaining ganache.
  • Refrigerate the cake for at least 1 hour before serving to allow the frosting to set.

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