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Slices of layered opera cake featuring shiny chocolate glaze and intricate gold decoration

Classic Opera Cake

5 from 1 vote
Aliana Recipes
This elegant Opera Cake features thin layers of almond sponge soaked in coffee syrup, filled with coffee buttercream and chocolate ganache. It is finished with a glossy chocolate glaze and gold laurel decorations.
Prep Time 1 hour
Cook Time 10 minutes
Total Time 1 hour 10 minutes
Servings:10 slices
Course:Dessert
Cuisine:French
Calories:680kcal
Cost:$15

Ingredients
  

  • 1 cup almond flour For the Joconde sponge
  • ¾ cup confectioners' sugar Sifted to remove lumps
  • ¼ cup all-purpose flour Provides structure
  • 3 whole eggs Room temperature
  • 3 egg whites Whipped to stiff peaks
  • 2 tablespoon unsalted butter, melted Cooled slightly
  • 1 tablespoon instant espresso powder Dissolved in water for syrup
  • ½ cup granulated sugar For the coffee syrup
  • 3 tablespoon brandy or cognac Optional flavoring for syrup
  • 1 cup unsalted butter, softened For the French buttercream
  • 4 egg yolks For the buttercream base
  • 7 oz semisweet chocolate Chopped fine for glaze
  • 10 oz semisweet chocolate chips For modeling chocolate decor
  • cup corn syrup For modeling chocolate

Equipment

  • 1 stand mixer For sponge and buttercream
  • 1 jelly roll pan 17x11 inch baking pan
  • 1 candy thermometer For sugar syrup
  • 1 Offset Spatula For spreading layers
  • 1 Parchment paper For lining pans

Method
 

  1. Whip the egg whites and superfine sugar until stiff glossy peaks form to create a meringue. Fold this gently into the almond flour mixture so the batter remains airy and light.
  2. Spread the batter evenly into a parchment-lined jelly roll pan using an offset spatula. Bake at 450°F for 5-7 minutes until the sponge springs back when pressed.
  3. Boil water and sugar in a saucepan until the sugar dissolves completely. Remove from heat and stir in the espresso and brandy to finish the soaking syrup.
  4. Cook sugar and water to 238°F and pour slowly into beating egg yolks to create a pate à bombe. Whisk in softened butter piece by piece until the mixture transforms into a silky buttercream.
  5. Cut the sponge into three equal rectangles and brush the first layer generously with coffee syrup. Spread half the buttercream over it smoothly to create the first distinct layer.
  6. Place the second sponge on top, brush with syrup, and spread with half the chocolate glaze. Chill briefly so the chocolate sets before adding the next layer.
  7. Add the final sponge, soak with remaining syrup, and top with the rest of the buttercream. Chill the entire cake for 30 minutes so it is firm enough for the final glaze.
  8. Pour the rewarmed chocolate glaze over the chilled cake and smooth it with a single stroke. Trim the edges with a hot knife to reveal clean, sharp layers.

Nutrition

Serving: 140g (1 slice)Calories: 680kcalCarbohydrates: 58gProtein: 8gFat: 48gSaturated Fat: 24gPolyunsaturated Fat: 3gMonounsaturated Fat: 18gTrans Fat: 0.5gCholesterol: 165mgSodium: 45mgPotassium: 320mgFiber: 4gSugar: 42gVitamin A: 800IUCalcium: 60mgIron: 2mg

Notes

Chill the cake thoroughly between layers to ensure clean lines when cutting; keep the knife hot and clean for sharp slices. Assemble on a flat board to prevent cracking the glaze.