This French opera cake combines layers of almond dacquoise, coffee-infused buttercream, and dark chocolate ganache, elevated with rose essence. Each slice offers a delicate balance of floral aroma, bittersweet chocolate, and gentle coffee notes. Ideal for festive occasions or intimate celebrations, it’s an elegant dessert that looks as exquisite as it tastes.
Ingredients
UNITSIngredients
1 cupAlmond flour
150gEgg whites (from 4 to 5 large eggs)
70gCastor sugar
¼ cupCoffee decoction
1 tspRose essence
1 cupMedium dark chocolate ganache
1 cupDark chocolate (hard) ganache
¼ cupMelted dark chocolate
2 cupsVanilla buttercream
3-4 tablespoonsCoffee decoction
½ tspRose essence
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Directions
Description - Step 1
Step 1: Prepare Almond Dacquoise
Whisk egg whites using an electric mixer until light and fluffy. Gradually add caster sugar and continue whisking to form stiff peaks. Sift almond flour and fold gently to maintain airiness. Spread evenly on a lined tray, tap lightly, and bake at 180°C for 7–8 minutes until firm yet soft to the touch. Cool and cut into 6-inch squares.
Description - Step 2
Step 2: Make Rose Coffee Syrup
Combine coffee decoction and rose essence in a small bowl. Stir until blended. This syrup will infuse the layers with subtle floral and coffee notes, adding depth to each bite.
Description - Step 3
Step 3: Layer Ganache and Cake
Place the first dacquoise square on a cake board. Brush generously with rose coffee syrup. Spread medium dark chocolate ganache evenly on top and refrigerate for 10 minutes to set before layering the next cake piece.
Description - Step 4
Step 4: Prepare Coffee Buttercream
Mix vanilla buttercream with 3-4 tablespoons of coffee decoction and ½ tsp rose essence. Whisk until smooth and uniform. This cream will provide a soft, aromatic filling between layers of chocolate and dacquoise.
Description - Step 5
Step 5: Assemble Cake Layers
Flip the first layer, brush again with rose coffee syrup, and spread dark chocolate ganache. Place the second dacquoise square on top, brush with syrup, and spread coffee buttercream. Add the final square, brush with syrup, and cover with the remaining coffee buttercream. Refrigerate for 25 minutes for firmness.
Description - Step 6
Step 6: Finish and Decorate
Pour medium dark chocolate ganache evenly over the top and refrigerate 15 minutes to set. Trim edges for clean rectangles. Pipe melted dark chocolate decoratively over each piece for an elegant finish.
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French 
Difficult
Dessert
