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Chocolate Soufflé Cake Recipe

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4 from 5 reviews

This decadent Chocolate Souffle Cake is a rich and airy dessert that combines the intense flavor of bittersweet chocolate with a light, souffle-like texture. Perfectly baked to achieve a delicate rise and an irresistible melt-in-your-mouth finish, this cake is ideal for special occasions or anytime you want an elegant chocolate treat.

  • Total Time: 1 hour 5 minutes
  • Yield: 8 servings

Ingredients

Chocolate Mixture

  • 3/4 cup unsalted butter (plus more for pan)
  • 8 ounces bittersweet chocolate (65% cacao or higher)
  • 2 tablespoons cocoa powder
  • 2 teaspoons instant espresso powder

Egg Mixture

  • 6 eggs (separated)
  • 1 whole egg
  • 1/4 teaspoon cream of tartar (optional)
  • 3/4 cup granulated sugar (divided: 1/4 cup and 1/2 cup)
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon kosher salt

Instructions

  1. Prep: Preheat your oven to 325°F (163°C). Grease a springform pan with 1 tablespoon of butter and dust it with either sugar or cocoa powder. Set aside.
  2. Melt Chocolate and Butter: Melt the unsalted butter and bittersweet chocolate together over simmering water in a double boiler for about 6 to 8 minutes. Remove from heat and allow the mixture to cool slightly.
  3. Separate Eggs: Separate the egg whites and yolks carefully, placing the yolks in one bowl and the egg whites in the bowl of a stand mixer fitted with the whisk attachment.
  4. Whip Yolks and Egg: Whisk the six yolks together with the whole egg and 1/4 cup of granulated sugar on high speed using an electric mixer until pale yellow and thick enough to fall in a ribbon when the beaters are lifted, approximately 5 minutes. Add vanilla extract, kosher salt, cocoa powder, and instant espresso powder and continue beating for 30 seconds or until fully incorporated.
  5. Whip Egg Whites: Using a clean bowl and whisk attachment, whip the egg whites with cream of tartar on medium speed. Gradually add the remaining 1/2 cup granulated sugar and increase the speed to high. Beat until medium-stiff peaks form, which will provide volume and structure.
  6. Combine Chocolate and Yolk Mixtures: Slowly pour the cooled melted chocolate mixture into the yolk mixture while whisking gently to combine smoothly.
  7. Fold in Egg Whites: Using a spatula, gently fold half of the whipped egg whites into the chocolate mixture to lighten it, allowing a marbled appearance. Then fold in the remaining egg whites carefully, taking care not to overmix to keep the batter airy.
  8. Bake: Pour the batter into the prepared springform pan, gently smoothing the top with a spatula or the back of a spoon. Bake in the preheated oven for 45 minutes or until a knife inserted into the center comes out clean and the edges start pulling away from the pan.
  9. Cool and Serve: Let the cake cool completely in the pan before removing the springform ring. Dust the cake with powdered sugar or cocoa powder for an elegant finish before serving.

Notes

  • Make sure to gently fold in the egg whites to maintain the cake’s fluffy texture.
  • If you don’t have espresso powder, you can omit it, but it enhances the chocolate flavor.
  • The cream of tartar in the egg whites helps stabilize the meringue, but it’s optional.
  • Use a springform pan to easily release the delicate soufflé cake without damage.
  • Serve this cake with fresh berries or a dollop of whipped cream for extra indulgence.
  • Author: Monica
  • Prep Time: 20 minutes
  • Cook Time: 45 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: French