Perfect Mini Opera Cake Recipe with Coffee Buttercream and Dark Chocolate Glaze
A sophisticated yet manageable mini opera cake featuring delicate almond sponge layers, rich coffee buttercream, and a glossy dark chocolate glaze. Perfect for intimate gatherings and those craving a classic French patisserie treat without the complexity.
- Prep Time: 30 minutes
- Cook Time: 7 minutes
- Total Time: 2 hours
- Yield: 8 mini cakes 1x
- Category: Dessert
- Cuisine: French
Ingredients
- 110g (1 cup) almond flour, finely ground
- 40g (1/3 cup) all-purpose flour
- 90g (3/4 cup) powdered sugar
- 4 large egg whites, room temperature
- 4 large whole eggs, room temperature
- 40g (3 tbsp) unsalted butter, melted and cooled
- Pinch of salt
- 200g (7 oz) unsalted butter, softened
- 150g (1 1/4 cups) powdered sugar, sifted
- 2 tbsp instant espresso powder
- 2 tbsp strong brewed coffee, cooled
- 1 tsp vanilla extract
- 120g (4 oz) good quality dark chocolate (70% cocoa), chopped
- 120ml (1/2 cup) heavy cream
- 1 tbsp light corn syrup (optional)
- 1 tbsp unsalted butter, softened
Instructions
- Prepare the Joconde Sponge: Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper. Sift together almond flour, all-purpose flour, and powdered sugar in a bowl. Whisk egg whites with a pinch of salt until stiff peaks form. Beat whole eggs until frothy, then gently fold in dry ingredients. Fold whipped egg whites into batter in three additions, preserving airy texture. Fold in melted butter. Spread evenly on baking sheet and bake 5-7 minutes until lightly golden and springy. Allo…
- Make the Coffee Buttercream: Beat softened butter until light and fluffy. Gradually add sifted powdered sugar, then dissolved espresso powder in brewed coffee, mixing well after each addition. Add vanilla extract and continue beating until smooth and spreadable. Chill briefly if too soft.
- Prepare the Dark Chocolate Glaze: Heat heavy cream and corn syrup in a small saucepan until just boiling. Pour over chopped dark chocolate in a heatproof bowl. Let sit 1 minute, then stir gently until smooth. Stir in softened butter for shine. Let cool slightly to a pourable but thick consistency.
- Assemble the Mini Opera Cakes: Cut sponge into small rectangles (about 3×1.5 inches). Spread a thin layer of coffee buttercream on each layer, repeat to create 3 layers per mini cake. Use offset spatula for even spreading. Chill assembled cakes for 15 minutes to firm up.
- Glaze the Cakes: Place cakes on wire rack with tray underneath. Pour chocolate glaze evenly over each mini cake, covering all sides for a glossy finish. Let set at room temperature or chill briefly before serving.
Notes
Use room temperature eggs and butter for best results. Whip egg whites to stiff but glossy peaks to keep sponge light. Heat chocolate glaze gently to avoid graininess. Chill buttercream layers before glazing to prevent smudging. Let assembled cakes rest in fridge before glazing for cleaner cuts. For gluten-free, substitute all-purpose flour with gluten-free blend or more almond flour. For dairy-free, substitute butter with coconut oil and use coconut cream for glaze.
Nutrition
- Serving Size: One mini cake (appro
- Calories: 310
- Sugar: 18
- Fat: 22
- Saturated Fat: 12
- Carbohydrates: 22
- Protein: 4
Keywords: mini opera cake, coffee buttercream, dark chocolate glaze, French patisserie, almond sponge, easy opera cake, layered cake, dessert recipe