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Delicious Opera Cake: A Layered Temptation

Name: Delicious Opera Cake: A Layered Temptation
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 4 servings
Cuisine: Brasileira
Ingredients: Dough: 200g of bittersweet chocolate, 120g of butter, 150g of sugar, 4 eggs, 100g of wheat flour.; Coffee filling: 200ml heavy cream, 100g sugar, 3 tablespoons instant coffee, 1 tablespoon unflavored gelatin.; Topping: 150g of dark chocolate, 50g of butter.

Por

Master Receita Solta

Delicious Opera Cake: A Layered Temptation

Prep Time20 min

Cook Time30 min

Servings4 servings

DifficultyEASY

Calories1345 kcal

Resumo para quem tem pressa

"The Opera Cake is one of the most refined and technical creations of French pâtisserie, notable for its millimetrically superimposed layers of chocolate sponge, silky coffee-flavored filling, and pure chocolate mirror glaze. Each slice reveals geometric precision and contrast of densities. The coffee syrup penetrates the dough without softening it excessively, while the aerated coffee ganache and the structured cream create balance with the bitterness of the cocoa. Finished with a smooth and shiny glaze, it delivers a sophisticated experience with intense notes of roasted coffee and noble chocolate."

Delicious Opera Cake: A Layered Temptation

O Que Você Precisa Saber

- Beat the eggs with the sugar until a light and voluminous cream is formed before joining the melted chocolate emulsion with butter. - Dissolve the hydrated gelatin in warm heavy cream with instant coffee to structure the filling without losing creaminess. - Chill the assembled cake in the refrigerator for at least 4 hours before pouring the smooth chocolate glaze to ensure a mirror finish.

Ingredients

Main Course

Dough: 200g of bittersweet chocolate, 120g of butter, 150g of sugar, 4 eggs, 100g of wheat flour.
Coffee filling: 200ml heavy cream, 100g sugar, 3 tablespoons instant coffee, 1 tablespoon unflavored gelatin.
Topping: 150g of dark chocolate, 50g of butter.

Instructions

Main Course

Pré-aqueça o forno a 180°C e unte a forma.

Melt the dark chocolate and butter in a double boiler, stirring until homogeneous.

In a bowl, beat the eggs with the sugar until a light and fluffy cream forms.

Incorporate the melted chocolate mixture into the beaten eggs.

Sift the flour and mix gently.

Pour into the mold and bake for 25 minutes.

Enquanto isso, prepare o recheio: aqueça o creme de leite e adicione o café solúvel e o açúcar, misturando bem.

Hydrate the gelatin in cold water and dissolve in the hot cream.

Let it cool and refrigerate until it firms up a bit.

Quando a massa estiver fria, corte em camadas e intercale com o creme de café.

Prepare the topping by melting the chocolate with the butter and spread over the assembled cake.

Leave in the refrigerator for a few hours before serving.

Equipe sua Cozinha

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Chef Tips

- Bake the batter in a shallow rectangular pan and cut into plates of identical thickness with a culinary ruler to maintain the symmetry of the layers. - Use good quality concentrated instant coffee to impart robust coffee notes without adding excess water to the cream. - Heat the knife in hot water and dry well before each side cut to leave the layers of filling and dough perfectly visible.

Variations

- Classic Opera Cake with Joconde sponge: prepare the dough with traditional almond flour and French coffee buttercream. - Opera Cake with hazelnuts: replace part of the flour with toasted hazelnut flour for an aromatic gianduja profile. - Mini Opera portions: cut the assembled cake into small individual parallelepipeds of 3x8 cm for finger food service.

Substitutions

- The unflavored gelatin in the filling can be replaced by agar-agar boiled briefly (half the amount in powder). - Instant coffee can be swapped for artisanal concentrated coffee extract or double shots of reduced espresso. - The topping butter can be replaced by corn oil or canola oil to provide fluid shine to the glaze.

How to Store

Keep the cake in a sealed container in the refrigerator for up to 5 days. Always keep refrigerated to preserve the firm consistency of the coffee filling and the finish of the topping.

Can You Freeze It?

Freeze the already assembled and cut cake wrapped in plastic film for up to 45 days at -18°C. Thaw slowly in the refrigerator for 6 hours before serving so as not to condense water on the chocolate.

What to Serve With

Serve accompanied by decaffeinated coffee, short espresso with thick crema, fresh sparkling mineral water, or a glass of French cognac.

Frequently Asked Questions

How to get the sides of the Opera Cake to have perfectly visible layers?

After refrigerating the cake completely for 4 hours, trim the four side edges with a long-bladed knife heated in hot water and dried with a clean cloth between each cut.

Why is gelatin used in the coffee filling in this version?

The gelatin ensures that the coffee cream maintains a firm structure when cut into thin slices, preventing the filling from overflowing under the weight of the upper chocolate layers.

A cobertura de chocolate deve estar quente ao ser despejada?

Não. A cobertura de chocolate e manteiga deve estar morna (em torno de 32°C a 35°C). Se estiver quente, ela derrete a camada de creme inferior; se estiver fria, não nivelará de forma lisa.

What is the best way to dissolve instant coffee in the cream?

Heat the heavy cream over low heat and add the instant coffee, stirring with a whisk until all granules dissolve before incorporating the sugar and hydrated gelatin.