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Tuxedo Cake Costco Copycat Recipe

Tuxedo Cake Costco Copycat Recipe


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4.8 from 16 reviews

  • Author: Emma
  • Total Time: 1 hour 20 minutes (plus chilling)
  • Yield: 12 servings 1x
  • Diet: Vegetarian

Description

Indulge in the decadent Tuxedo Cake with this Costco copycat recipe. Layers of moist chocolate cake sandwich velvety chocolate and white chocolate mousses, topped with a rich ganache. Perfect for special occasions or a sweet treat anytime.


Ingredients

Scale

For the Chocolate Cake Layers:

  • 1 ¾ cups all-purpose flour
  • ¾ cup unsweetened cocoa powder
  • 2 cups granulated sugar
  • 1 ½ teaspoons baking powder
  • 1 ½ teaspoons baking soda
  • ½ teaspoon salt
  • 2 large eggs
  • 1 cup buttermilk
  • ½ cup vegetable oil
  • 2 teaspoons vanilla extract
  • 1 cup hot water

For the Chocolate Mousse Layer:

  • 1 cup heavy whipping cream
  • 1 cup semi-sweet chocolate chips

For the White Chocolate Mousse Layer:

  • 1 cup heavy whipping cream
  • 1 cup white chocolate chips

For the Chocolate Ganache:

  • 1 cup heavy whipping cream
  • 1 cup semi-sweet chocolate chips

Optional Toppings:

  • Shaved chocolate
  • Chocolate curls
  • Piped whipped cream for garnish

Instructions

  1. Preheat the oven: Preheat oven to 350°F (175°C) and prepare cake pans.
  2. Prepare the Cake Layers: Mix dry ingredients, add wet ingredients, pour in hot water, and bake.
  3. Make the Chocolate Mousse: Heat cream, pour over chocolate chips, chill, then whip until fluffy. Repeat for white chocolate mousse.
  4. Assemble the Cake: Layer cake with chocolate and white chocolate mousse, ending with a cake layer on top. Chill.
  5. Prepare the Ganache: Heat cream, mix with chocolate chips, cool slightly, then pour over chilled cake.
  6. Garnish and Serve: Decorate with chocolate curls or whipped cream. Refrigerate until ready to serve.

Notes

  • For easier slicing, freeze cake layers for 30 minutes before cutting.
  • This cake tastes best chilled and can be made ahead 1–2 days in advance.
  • Use high-quality chocolate for superior flavor and texture.
  • Prep Time: 45 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 620
  • Sugar: 48g
  • Sodium: 260mg
  • Fat: 38g
  • Saturated Fat: 22g
  • Unsaturated Fat: 13g
  • Trans Fat: 0g
  • Carbohydrates: 65g
  • Fiber: 3g
  • Protein: 6g
  • Cholesterol: 100mg