Chocolate Genoise Cake
This Chocolate Genoise is the quintessential showstopper for any celebration. Unlike dense pound cakes, this sponge relies on whipped eggs for its structure, resulting in a delicate, melt-in-your-mouth texture that is perfectly balanced by deep chocolate flavor. The secret lies in the Espresso Buttercream, where the bitterness of the coffee amplifies the richness of the semisweet chocolate, creating a sophisticated flavor profile that isn't overly sweet. It’s an elegant choice for birthdays, anniversaries, or a special Sunday afternoon tea. The cake holds its shape beautifully for layering and piping, making it ideal for intricate decorations. Serve it with a cup of strong coffee or tea to complement the roasted notes in the frosting. This recipe requires patience during the whipping stages, but the result is a bakery-quality dessert that feels indulgent yet refined.
Description
This Chocolate Genoise is the quintessential showstopper for any celebration. Unlike dense pound cakes, this sponge relies on whipped eggs for its structure, resulting in a delicate, melt-in-your-mouth texture that is perfectly balanced by deep chocolate flavor. The secret lies in the Espresso Buttercream, where the bitterness of the coffee amplifies the richness of the semisweet chocolate, creating a sophisticated flavor profile that isn't overly sweet. It’s an elegant choice for birthdays, anniversaries, or a special Sunday afternoon tea. The cake holds its shape beautifully for layering and piping, making it ideal for intricate decorations. Serve it with a cup of strong coffee or tea to complement the roasted notes in the frosting. This recipe requires patience during the whipping stages, but the result is a bakery-quality dessert that feels indulgent yet refined.
Ingredients
- 1/2 unsalted butter
- 2 semisweet chocolate
- 6 slightly beaten eggs
- 1 sugar
- 1 vanilla
- 1 all-purpose flour
- 6 egg yolks
- 1 sugar
- 1/3 water
- 4 instant espresso coffee powder
- 1 1/2 unsalted butter, softened
- 1/4 semisweet chocolate pieces, melted and cooled
Directions
- 1 Preheat oven to 350°F (175°C). Grease and lightly flour two 9 x 1 1/2 inch round baking pans. Set aside.
- 2
In a saucepan, melt 1/2 cup butter and 2 squares of semisweet chocolate over low heat, stirring often until smooth. Set aside to cool slightly.- 3
In a large mixer bowl, combine 6 eggs, 1 cup sugar, and 1 teaspoon vanilla. Place the bowl over (not touching) 1 to 2 inches of hot (not boiling) water in a large saucepan.- 4
Heat the egg mixture over low heat, stirring occasionally, for about 10 minutes or until lukewarm (approximately 110°F).- 5
Remove the bowl from the heat. Beat with an electric mixer on high speed for about 15 minutes, or until the mixture is thick, pale, and nearly tripled in volume.- 6
Gently fold in the 1 cup of all-purpose flour, one-third cup at a time, using a spatula to maintain airiness.- 7
Gradually fold in the warm chocolate mixture, being careful not to deflate the batter.- 8
Spread the batter evenly into the prepared pans. Bake for 25 to 30 minutes, or until a wooden toothpick inserted near the center comes out clean.- 9
Cool the cakes in the pans for 10 minutes on wire racks. Then, remove from pans and cool completely.- 10
While the cakes cool, prepare the Espresso Buttercream. In a medium saucepan, combine 1 cup sugar, 1/3 cup water, and 4 teaspoons instant espresso powder.- 11
Bring the sugar mixture to a boil, stirring until dissolved. Cook over medium-high heat, stirring constantly, until the mixture reaches the soft-ball stage (236°F on a candy thermometer).- 12
Meanwhile, beat 6 egg yolks with an electric mixer until thick and lemon-colored. Set aside.- 13
Quickly pour the hot sugar syrup in a steady stream over the egg yolks, beating constantly on high speed. Continue beating until the mixture is thick, smooth, and cooled to room temperature (about 15 minutes).- 14
Beat 1 1/2 cups softened butter until light and fluffy. Gradually beat the butter into the cooled egg yolk mixture, one tablespoon at a time.- 15
Cover the buttercream and chill for 30 minutes, or until stiff enough to spread.- 16
Stir 1/4 cup melted semisweet chocolate into 1/2 cup of the prepared buttercream to create chocolate buttercream.- 17
Fill and frost the cooled cake layers with the remaining plain Espresso Buttercream.- 18
Pipe the chocolate buttercream around the edges of the cake for decoration.NoteStorage: Store the cake in the refrigerator for up to 3 days. Bring to room temperature before serving for the best texture.
Tip: Ensure the egg mixture reaches the correct temperature when whipped; it should be thick enough to hold its shape on the beaters. This is crucial for the cake's height.
Substitution: If you do not have a candy thermometer, test the soft-ball stage by dropping a small amount of syrup into cold water; it should form a soft ball that flattens when removed.
Variation: For a stronger coffee flavor, use freshly brewed strong espresso instead of instant powder in the buttercream syrup.
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