Name: Chocolate Opera Cake
Prep time: 120 min
Cook time: 30 min
Total time: 150 min
Yield: 12 servings
Cuisine: French
Ingredients: 1.5 cups Almond Flour; 1.25 cups Icing Sugar; 4 large Whole Eggs; 0.25 cup Cake Flour; 4 large Egg Whites; 2 tablespoons Granulated Sugar; 2 tablespoons Unsalted Butter, melted; 0.5 cup Strong Brewed Coffee; 8 ounces Dark Chocolate (70% cocoa); 0.75 cup Heavy Cream; 1 cup Unsalted Butter, softened; 2 tablespoons Instant Espresso Powder

Desserts

Chocolate Opera Cake

This architectural masterpiece of French pastry features thin layers of almond joconde sponge soaked in potent coffee syrup, alternating with espresso-infused buttercream and luxurious dark chocolate ganache. Finished with a glass-like chocolate glaze, it is the ultimate expression of elegance and flavor balance.

Prep

120m

Cook

30m

Serves

Calories

540kcal

Qty	Ingredient
1.5 cups 150 g	Almond Flour
1.25 cups 150 g	Icing Sugar
4 large 200 g	Whole Eggs
0.25 cup 35 g	Cake Flour
4 large 120 g	Egg Whites
2 tablespoons 30 g	Granulated Sugar
2 tablespoons 30 g	Unsalted Butter, melted
0.5 cup 120 ml	Strong Brewed Coffee
8 ounces 225 g	Dark Chocolate (70% cocoa)
0.75 cup 180 ml	Heavy Cream
1 cup 225 g	Unsalted Butter, softened
2 tablespoons 10 g	Instant Espresso Powder

2 Method

Step 1. Prepare the Joconde Sponge: Beat almond flour, icing sugar, and 4 eggs for 5 minutes until light. Fold in cake flour. In a separate bowl, whisk 4 egg whites with granulated sugar to stiff peaks, then fold into the almond mixture with melted butter. Spread thinly on a baking sheet and bake at 400°F (200°C) for 8-10 minutes. Cut into three equal rectangles.

Step 2. Make the Coffee Syrup: Mix hot brewed coffee with a tablespoon of sugar and espresso powder. Set aside to cool.

Step 3. Prepare Coffee Buttercream: Whisk egg yolks until pale. Simmer sugar and water to 240°F (115°C), then drizzle into yolks while whisking. Gradually add softened butter and espresso powder until thick and silky.

Step 4. Prepare Ganache: Heat heavy cream and pour over chopped dark chocolate. Let sit for 2 minutes, then stir until smooth. Let cool until spreadable.

Step 5. Assembly: Place first sponge layer down and soak with coffee syrup. Spread a layer of coffee buttercream. Place second sponge layer, soak with syrup, and spread a layer of ganache. Place final sponge layer, soak with syrup, and spread a thin layer of buttercream. Chill for 1 hour.

Step 6. Glaze and Finish: Melt chocolate with a tablespoon of oil for shine. Pour over the chilled cake and smooth with a spatula. Chill until set, then trim the edges with a hot knife to reveal the distinct layers. Slice into rectangular bars to serve.

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Use a warm, wet knife to trim the edges for perfectly clean, professional-looking layers.
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Ensure the buttercream and the cake layers are at similar temperatures to prevent the cream from sliding.
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For the best flavor, let the cake sit in the refrigerator for at least 6 hours before serving to allow the coffee to penetrate the sponge.
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Don't overbake the Joconde; it should be flexible, not crispy, to prevent cracking.