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Decadent Chocolate Hazelnut Mousse Cake – A Rich and Creamy Delight


  • Author: Mary

Ingredients

Scale

  • 1 cup (6 oz) semi-sweet chocolate chips

  • 1/2 cup (1 stick) unsalted butter

  • 3/4 cup granulated sugar

  • 2 large eggs

  • 1 teaspoon vanilla extract

  • 1/2 cup all-purpose flour

  • 1/4 teaspoon salt

  • 1/2 cup chopped toasted hazelnuts

  • 1 cup heavy whipping cream

  • 1/2 cup chocolate-hazelnut spread (like Nutella)

  • 1 teaspoon unflavored gelatin

  • 2 tablespoons cold water

  • 1/2 cup milk chocolate chips

  • 1/4 cup heavy cream


Instructions

1. Prepare the Brownie Base:

  • Preheat your oven to 350°F. Grease an 8-inch round baking pan and line with parchment paper.

  • In a microwave-safe bowl, melt chocolate chips and butter in 30-second intervals, stirring until smooth.

  • Whisk in sugar, then add eggs one at a time, beating well. Stir in vanilla extract.

  • Fold in flour and salt, then add hazelnuts.

  • Pour batter into the pan and bake for 20-25 minutes, until a toothpick comes out with a few moist crumbs.

  • Let the brownie cool completely.

2. Make the Chocolate Hazelnut Mousse:

  • Sprinkle gelatin over cold water in a small bowl and let sit for 5 minutes.

  • Heat chocolate-hazelnut spread in the microwave until pourable.

  • Microwave gelatin for 10 seconds until liquid, then stir into the spread.

  • Whip heavy cream to stiff peaks, then fold into the chocolate mixture until smooth.

3. Assemble the Cake:

  • Spread the mousse over the cooled brownie base.

  • Refrigerate for at least 2 hours until set.

4. Prepare the Chocolate Glaze:

  • Microwave milk chocolate chips and heavy cream in 20-second intervals, stirring until smooth.

  • Let cool slightly until thick but pourable.

5. Glaze & Serve:

 

  • Pour glaze over the cake and spread evenly.

  • Refrigerate for 30 minutes until set.

  • Slice and serve chilled.