This decadent Nutella Brownie Cake is layers of rich chocolate brownies, creamy Nutella frosting, toasted hazelnuts, and a smooth chocolate ganache.

homemade Chocolate Hazelnut Brownie CakeNutella Brownie Cake

Alright guys, this Nutella Brownie Cake may be my most decadent brownie cake to date. I mean the Brownie Chocolate Chip Cookie Dough Cake was amazing, and the Turtle Brownie Cake was oozing with delicious caramel and pecan flavor, but this Nutella Brownie Cake is layer upon layer of fudgy chocolate brownies, rich, Nutella frosting, and a smooth chocolate ganache glaze. It’s what chocolate lover dreams are made of.

Note: This post may contain affiliate links. That means if you click on a link and make a purchase we may receive a small commission. Thank you!Chocolate Hazelnut Brownie Cake layered with nutella

How to Make Nutella Frosting:

  1. Cream together 2 cups of unsalted butter and 4 cups of confectioners’ sugar.
  2. Add 1 cup of Nutella and continue mixing until fully incorporated. 

3 layer Chocolate Hazelnut Brownie Cake

How to Make Chocolate Ganache:

Chocolate ganache is a simple blend of heavy cream and chocolate. It makes a heavenly topping for cakes, cupcakes, and brownies. You can make different textures of ganache by adjusting how much heavy cream you use. For this recipe I used a 2:1 chocolate to heavy cream ratio to make a chocolate ganache that could be poured and then spread to cover the top of the cake. To make the chocolate ganache you:

  1. Chop up 2 cups of chocolate and place it in a bowl.
  2. In the microwave heat 1 cup of heavy cream until it is boiling (about 1 minute depending on your microwave).
  3. Pour the heavy cream over the chocoalte and let it sit for 30 seconds. Then stir the chocolate and cream together until the chocolate is fully melted and smooth.

Note: If your chocolate doesn’t melt complete and the mixture has cooled down you can microwave for 15 seconds at a time until the ganache is smooth.

What to Decorate Your Nutella Brownie Cake With:

You can decorate your Nutella Brownie Cake however you like. This is a pretty over-the-top cake so the more decorations the better in my opinion! Below are some of the things that I used.

Chocolate Hazelnut Brownie Cake with caramel

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Servings: 20

Nutella Brownie Cake

This decadent Nutella Brownie Cake is layers of rich chocolate brownies, creamy Nutella frosting, toasted hazelnuts, and a smooth chocolate ganache.
homemade Chocolate Hazelnut Brownie Cake
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  • 2 boxes Brownie mix + ingredients on back of package, the mix should be the size for making in 9x13 inch pan

Nutella Frosting

  • 2 cup Unsalted butter, softened to room temperature
  • 4 cups Confectioners' sugar
  • 1 cup Nutella

Chocolate Ganache

  • 2 cups Chocolate Morsels
  • 2 cups Dark chocolate, finely chopped
  • 1 cup Heavy cream

Toppings (All Optional):

  • ½ cup Caramel syrup
  • 1 cup Hazelnuts, chopped
  • 10 Pepperidge Farm Pirouette Crème Filled Wafers



  • Mix the brownie batter according to package instructions and pour into 3 greased and parchment lined 9-inch round pans.
  • Bake brownies following the instructions on the packaging for 8x8" brownie pan.
  • While the brownies bake and cool make the nutella frosting.

Nutella Frosting

  • Cream together the butter and confectioners’ sugar. Add Nutella and continue mixing until fully incorporated. 

Chocolate Ganache

  • Place the chopped chocolate in a bowl.
  • Heat the heavy cream in the microwave until it begins to boil, approximately 1 minute depending on the microwave.
  • Pour the hot cream over the chopped chocolate stirring until completely melted and smooth.


  • Once the brownies are completely cooled assemble the Nutella brownie cake starting with a layer of brownie, then spreading nutella frosting over it, brownie, nutella frosting, brownie.
  • Pour the ganache over the top of the Nutella Brownie Cake and use a spatula to spread it over the top and make it drip down the sides slightly.
  • Top with chopped hazelnuts, caramel, cookies.
  • Enjoy!


Serving: 1slice, Calories: 850kcal, Carbohydrates: 98g, Protein: 6g, Fat: 48g, Saturated Fat: 27g, Cholesterol: 68mg, Sodium: 198mg, Potassium: 246mg, Fiber: 3g, Sugar: 72g, Vitamin A: 795IU, Vitamin C: 0.6mg, Calcium: 73mg, Iron: 4.7mg
Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.
Author: Kat Jeter & Melinda Caldwell