🇫🇷 France · Dessert
Opéra Cake: Classic Layered Parisian Coffee and Chocolate Delight
By eatmundo · July 6, 2026
🇫🇷 FRThe Opéra Cake is a sophisticated French dessert, boasting layers of almond sponge cake soaked in coffee syrup, rich coffee buttercream, and smooth chocolate ganache. It's an elegant masterpiece, often topped with a glossy chocolate glaze and edible gold leaf, a true Parisian patisserie icon.
Ingredients
check them off as you prepareHow to Make It
- 1
Preheat your oven to 180°C (350°F). Prepare the Joconde biscuit: Whip 4 large egg whites with 50g granulated sugar until stiff peaks form. In another bowl, combine 125g almond flour, 125g powdered sugar, 30g all-purpose flour, 3 whole large eggs, and 50g melted unsalted butter. Gently fold in the whipped egg whites. Spread this thin batter evenly onto a baking sheet lined with parchment paper (approx. 30x40 cm) and bake for 8-10 minutes until lightly golden. Let cool and cut into three equal rectangles.
- 2
Prepare the coffee syrup: In a small saucepan, combine 100ml water and 75g granulated sugar. Bring to a boil, then remove from heat and stir in 1 tablespoon of espresso powder until dissolved. Let cool completely.
- 3
Prepare the coffee buttercream: In a heatproof bowl, whisk 3 large egg yolks. In a small saucepan, combine 80ml water and 100g granulated sugar and boil until it reaches 118°C (245°F). Slowly pour the hot sugar syrup into the egg yolks while whisking continuously. Continue whisking until the mixture is cool. Gradually add 200g softened unsalted butter, piece by piece, whisking until light and fluffy. Finally, beat in 1 tablespoon of espresso powder.
- 4
Prepare the chocolate ganache: Roughly chop 150g dark chocolate (70% cocoa). Heat 100ml heavy cream in a small saucepan until simmering, then pour it over the chopped chocolate. Let it sit for 2 minutes, then stir until smooth and shiny. Stir in 50g softened unsalted butter until fully incorporated.
- 5
To assemble, place one Joconde biscuit layer on a serving platter or cake board. Brush generously with the coffee syrup. Spread half of the chocolate ganache evenly over the biscuit. Chill in the refrigerator for 15-20 minutes to set.
- 6
Place the second biscuit layer on top of the ganache. Brush with coffee syrup, then spread all of the coffee buttercream evenly over it. Chill for another 15-20 minutes.
- 7
Top with the third biscuit layer, brush with the remaining coffee syrup, and spread the remaining chocolate ganache. Smooth the top. Chill the cake for at least 2 hours, or preferably overnight, to allow the layers to set firmly.
- 8
Prepare the chocolate glaze: Melt the remaining 150g dark chocolate with 1 tablespoon of vegetable oil in a double boiler or microwave, stirring until smooth and glossy. Pour the glaze over the chilled cake, spreading quickly to cover the top evenly. Let it set for 15-20 minutes.
- 9
Once the glaze is set, carefully trim the edges of the cake with a sharp, hot knife for clean layers. Decorate the top with cocoa powder or a piece of edible gold leaf for a touch of classic elegance. Serve chilled for the best texture and flavor.
Frequently Asked Questions
What kind of almond flour should I use for the Joconde sponge in Opéra Cake, and is there any special preparation?+
For the best Joconde sponge, use superfine blanched almond flour. If your almond flour is not very fine, pulse it briefly with a portion of the powdered sugar in a food processor to prevent a grainy texture.
What type of espresso powder is best for the coffee syrup and buttercream, and can I substitute it?+
Use a high-quality instant espresso powder for a robust coffee flavor that dissolves easily. While instant coffee granules can work as a substitute, you may need to use a bit more to achieve the desired intensity.
What percentage of dark chocolate is ideal for the ganache and glaze to achieve the right consistency and flavor balance?+
For the ganache and glaze, a good quality dark chocolate with 60-70% cocoa solids is ideal. This range provides a rich flavor without being overly bitter and sets well, ensuring a smooth, glossy finish.
How long should I chill the Opéra Cake layers between assembly steps to ensure stability?+
Chill each major layer (sponge with syrup, buttercream, ganache) for at least 15-20 minutes in the refrigerator, or until firm to the touch, before adding the next layer. This prevents layers from sliding and ensures clean edges.
🇫🇷 FRMundo Match
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