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A rich chocolate mousse cake sitting on a vintage lace tablecloth with a silver server.

Chocolate Mousse Cake


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5 from 6 reviews

  • Author: Teresa Flagler
  • Total Time: 7 hours 20 mins
  • Yield: 12 servings
  • Diet: Vegetarian

Description

Indulge in a decadent chocolate experience featuring a moist, cocoa-infused sponge topped with a velvety, cloud-like mousse and a light whipped cream finish. This heritage-inspired dessert perfectly balances rich flavors and airy textures for any special occasion.


Ingredients

  • All-purpose flour
  • Cornstarch
  • Baking powder
  • Baking soda
  • Salt
  • Unsweetened cocoa powder
  • Oil
  • Granulated sugar
  • Brown sugar
  • Eggs
  • Vanilla extract
  • Vinegar
  • Buttermilk
  • Sour cream
  • Hot water
  • Instant chocolate pudding mix
  • Milk
  • Heavy cream
  • Powdered sugar


Instructions

  1. Preheat oven to 350℉ and prepare a 9-inch springform pan with baking oil and a parchment paper circle at the bottom.
  2. In a large sturdy bowl, whisk together the flour, cornstarch, baking powder, baking soda, salt, and cocoa powder until smooth.
  3. In a separate bowl, whisk together the oil, granulated sugar, brown sugar, eggs, vanilla, vinegar, buttermilk, and sour cream, then slowly whisk in the hot water.
  4. Pour the batter into the prepared pan and bake for 33-36 minutes until a toothpick comes out clean; cool completely on a wire rack.
  5. Prepare the mousse by beating instant pudding and milk for 2 minutes, then in a separate chilled bowl, whip heavy cream, cocoa, and vanilla to stiff peaks.
  6. Gently fold the chocolate whipped cream into the pudding mixture using a rubber spatula to maintain lightness.
  7. Level the cooled cake with a serrated knife, return it to the springform pan with acetate or parchment side linings, spread the mousse over the top, and chill for at least 6 hours.
  8. For the final layer, beat heavy cream, powdered sugar, cocoa, and vanilla to medium peaks and spread over the set mousse before removing the pan sides.

Notes

To achieve perfectly clean and professional slices, dip a sharp knife into hot water and wipe it dry before every single cut. Ensure the cake base is completely at room temperature before adding the mousse layer, as any residual warmth will cause the airy mousse to deflate. If you do not have professional acetate strips, you can easily use strips of parchment paper around the inside of the pan to create smooth edges for the layers.

  • Prep Time: 45 mins
  • Cook Time: 35 mins
  • Category: Dessert
  • Method: Baking
  • Cuisine: American