Opera Cake
Quick answer
- Total time
- 110 min
- Level
- Hard
- Servings
- 10 servings
- Ingredients
- 6
About this dish
Opera cake repeats thin sheets of almond-and-egg sponge with espresso buttercream and dark chocolate.
Read more
Sift the almond flour and powdered sugar together so no dry lumps remain, then mix in the eggs until the batter becomes pale, thick, and even. Spread it into a very thin sheet of consistent depth; an uneven sponge creates a tilted stack once several pieces are layered. Bake until the edges look dry and the surface springs back lightly, then cool the sheet flat before cutting equal sections. For the coffee layer, soften the butter first and add the espresso gradually, mixing after each addition so the liquid is absorbed without separating the cream. Chop the dark chocolate finely and melt it over gentle heat, then let it cool until it can be spread without running through the stack. Build the cake by repeating sponge, a thin level layer of coffee buttercream, and a thin chocolate layer. Smooth more chocolate across the top. Refrigeration for the stated minimum time firms the butter and chocolate enough to stabilize the assembly. Slice it while cold to reveal clean horizontal bands of almond sponge, espresso cream, and dark chocolate.
Ingredients
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Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Season
Sift the 150 g almond flour with the powdered sugar to remove lumps.
Add the 6 eggs and mix until the batter looks pale, thick, and even, scraping the bowl so no dry pockets remain.
- 2Heat
Spread the batter into a very thin, even sheet and bake in a preheated oven.
Remove it when the edges look dry and the surface springs back lightly, then cool it flat before cutting.
- 3Prep
Beat the 200 g butter until smooth and soft.
Add the 100 ml espresso gradually, mixing on medium speed after each addition so the buttercream stays creamy instead of separating.
- 4Control
Chop the 150 g dark chocolate finely and melt it slowly over low heat.
Stir until glossy and lump-free, then let it cool until it spreads without running through the layers.
- 5Finish
Cut the cooled sponge into equal pieces and spread the buttercream and melted chocolate in very thin layers.
Keep each layer level so the finished stack shows clean stripes.
- 6Prep
Stack the sponge, buttercream, and chocolate in repeated layers, then smooth the top with more chocolate.
Refrigerate for at least 4 hours and slice while cold so the layers hold.
Practical Cooking Checks
The cues that matter most while cooking.
- Key technique
- Almond and egg batter is baked thin and cut into equal sponge sheets
- Finish cue
- Stir until glossy and lump-free, then let it cool until it spreads without running through the layers.
- Storage and reheating
- Refrigeration for the stated minimum time firms the butter and chocolate enough to stabilize the assembly.
Cooking decision evidence
Calculated Charim data and applicable official cooking and food safety guidance.
This recipe
110min, 6 ingredients
Category median
55min, 8 ingredients
Based on 248 recipes
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