Tuxedo Triple Chocolate Mousse (Printer-Friendly)

Rich triple chocolate layers with creamy mousse and silky ganache for a special occasion treat.

# List of Ingredients:

→ Chocolate Cake

01 - 2 cups all-purpose flour
02 - 2 cups granulated sugar
03 - 1/2 cup cocoa powder
04 - 1 1/2 teaspoons baking powder
05 - 1 1/2 teaspoons baking soda
06 - 1/2 cup whole milk, room temperature
07 - 2 large eggs, room temperature
08 - 1/2 cup sour cream, room temperature
09 - 1/2 cup vegetable oil
10 - 1 teaspoon espresso powder
11 - 1 teaspoon vanilla extract
12 - 1/2 teaspoon salt
13 - 1 cup hot water

→ Chocolate Mousses

14 - 4 large egg yolks
15 - 2 cups heavy cream
16 - 2 tablespoons granulated sugar
17 - 2 tablespoons cornstarch
18 - 1 teaspoon vanilla extract
19 - 3.5 oz dark chocolate
20 - 4.5 oz white chocolate

→ Chocolate Ganache

21 - 5 oz milk chocolate
22 - 1/3 cup heavy cream

# Preparation Steps:

01 - Grease two 9-inch round cake pans and line the bottoms with parchment paper. Preheat oven to 350°F.
02 - Whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt in a large bowl until fully combined.
03 - In a separate bowl, whisk milk, eggs, sour cream, vegetable oil, espresso powder, and vanilla extract until espresso powder is dissolved.
04 - Gradually add wet ingredients to dry ingredients, mixing gently until combined. Then slowly stir in hot water until batter is smooth and thin.
05 - Divide batter evenly between prepared pans and bake for 30-35 minutes or until a toothpick comes out clean.
06 - Allow cakes to cool in pans for 10 minutes before transferring to wire racks to cool completely, about 2 hours.
07 - Heat 1 cup heavy cream until it just begins to simmer, then remove from heat.
08 - In a bowl, whisk egg yolks, sugar, and cornstarch until pale and thick. Slowly whisk in hot cream to prevent curdling.
09 - Return mixture to saucepan and cook over medium heat, stirring constantly until thick enough to coat back of a spoon (2-3 minutes).
10 - Separate custard equally into two bowls. Stir dark chocolate into one and white chocolate into the other until smooth.
11 - Whip remaining 1 cup heavy cream to soft peaks and gently fold half into each chocolate custard to create two mousses.
12 - Place one cake layer on serving plate, spread dark chocolate mousse evenly over top, then place second cake layer.
13 - Spread white chocolate mousse evenly over top layer and refrigerate for at least 2 hours to set.
14 - Heat heavy cream until simmering and pour over milk chocolate. Let stand 2 minutes, then stir until smooth and glossy.
15 - Pour ganache over chilled cake allowing drips down sides. Refrigerate an additional 30 minutes before serving.

# Additional Suggestions:

01 - Allow cake layers to cool completely before assembling to ensure mousse sets properly.