This opera cake stacks almond joconde sponge layers brushed with coffee syrup, then fills them with coffee buttercream and chocolate ganache. A dark chocolate glaze finishes the top, and the cake sets in the refrigerator for at least 2 hours before serving.

Ingredients for Opera Cake

For the Joconde Sponge (Almond Sponge Cake):

6 large eggs
6 large egg whites
150g almond flour
150g powdered sugar
50g all-purpose flour
50g granulated sugar

For the Coffee Syrup:

120ml water
100g granulated sugar
2 tsp instant coffee powder

For the Coffee Buttercream:

200g unsalted butter (softened)
150g powdered sugar
2 tbsp brewed espresso

For the Chocolate Ganache:

200g dark chocolate (chopped)
200ml heavy cream

For the Chocolate Glaze:

150g dark chocolate
2 tbsp vegetable oil

Steps to Make Opera Cake

1. Prepare the Joconde Sponge:

Preheat your oven to 200°C (390°F). Line a baking sheet with parchment paper.
In a bowl, whisk the almond flour, powdered sugar, and all-purpose flour.
Beat the eggs in another bowl until light and fluffy, then gradually fold in the dry mixture.
In a separate bowl, whip the egg whites and granulated sugar to form stiff peaks.
Gently fold the egg whites into the almond mixture.
Spread the batter evenly onto the prepared baking sheet and bake for 8-10 minutes or until golden.

2. Make the Coffee Syrup:

In a small saucepan, combine water, sugar, and instant coffee powder.
Heat until the sugar dissolves completely. Set aside to cool.

3. Prepare the Coffee Buttercream:

Beat the softened butter and powdered sugar until creamy.
Gradually add brewed espresso and mix until smooth.

4. Make the Chocolate Ganache:

Heat heavy cream in a saucepan until it just starts to boil.
Pour the hot cream over chopped dark chocolate and stir until smooth. Let it cool slightly.

5. Assemble the Cake:

Cut the sponge into three equal layers.
Place the first layer on a serving tray and brush generously with coffee syrup.
Spread a layer of coffee buttercream, followed by a layer of chocolate ganache.
Repeat the process with the second layer of sponge.
Place the third layer of sponge, brush with syrup, and spread a thin layer of ganache on top.

6. Prepare the Chocolate Glaze:

Melt the dark chocolate and mix with vegetable oil.
Pour the glaze over the top of the cake and spread evenly.
Let the cake set in the refrigerator for at least 2 hours before serving.

Nutritional Information (Per Serving)

Nutrient	Amount
Calories	450 kcal
Total Fat	30g
Saturated Fat	18g
Cholesterol	120mg
Sodium	60mg
Total Carbohydrates	38g
Dietary Fiber	3g
Sugars	28g
Protein	6g

Note: Nutritional values may vary based on ingredient brands and portion sizes.

Tips for the Perfect Opera Cake

Ensure all ingredients are at room temperature for better mixing.
Use high-quality chocolate for a rich and luxurious flavour.
Let the cake chill properly to allow the layers to set before slicing.

Happy baking!

Frequently Asked Questions

How long should opera cake chill before serving?

Let the glazed cake set in the refrigerator for at least 2 hours before serving, so the layers set properly before slicing.

How many sponge layers does opera cake have?

The joconde sponge is cut into three equal layers. The first two are brushed with coffee syrup and filled with coffee buttercream and chocolate ganache, and the third is brushed with syrup and topped with a thin layer of ganache.

What temperature should the ingredients be?

Make sure all the ingredients are at room temperature, which helps them mix better.

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