Homemade Costco Tuxedo Cake – A Decadent Chocolate Lover’s Dream!

Summary

The Homemade Costco Tuxedo Cake is the ultimate dessert for chocolate lovers. This show-stopping cake layers moist chocolate cake, creamy chocolate mousse, velvety white chocolate mousse, and a glossy chocolate ganache, all topped with a drizzle of chocolate and chocolate curls. It’s a bakery-style masterpiece you can make right at home, perfect for celebrations or satisfying your most intense chocolate cravings.

Prep Time: 40 minutes

Cook Time: 35 minutes

Total Time: 1 hour 15 minutes (plus chilling time)

Servings: 12-14

Calories: 620 per slice

Course: Dessert

Cuisine: American

Ingredients

For the Chocolate Cake Layers:

• 1 ¾ cups all-purpose flour
• ¾ cup unsweetened cocoa powder
• 2 cups granulated sugar
• 1 ½ tsp baking powder
• 1 ½ tsp baking soda
• 1 tsp salt
• 2 large eggs
• 1 cup whole milk
• ½ cup vegetable oil
• 2 tsp pure vanilla extract
• 1 cup boiling water

For the Dark Chocolate Mousse:

• 8 oz dark chocolate, chopped
• 1 ½ cups heavy cream
• ¼ cup powdered sugar

For the White Chocolate Mousse:

• 8 oz white chocolate, chopped
• 1 ½ cups heavy cream
• ¼ cup powdered sugar

For the Chocolate Ganache:

• 8 oz semi-sweet chocolate, chopped
• 1 cup heavy cream

Toppings:

• Chocolate curls or shavings
• Drizzle of melted chocolate (optional)

Equipment

• Two 9-inch round cake pans
• Mixing bowls
• Electric mixer or stand mixer
• Saucepan
• Heatproof bowls
• Rubber spatula
• Offset spatula
• Cake turntable (optional)

Instructions

Step 1: Bake the Chocolate Cake Layers

1. Preheat oven to 350°F (175°C). Grease and flour two 9-inch cake pans.
2. In a large mixing bowl, whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt.
3. Add eggs, milk, oil, and vanilla. Mix until smooth.