A layer cake made with layers of nutella brownie, nutella mousse, nutella glaze, melted chocolate and roasted hazelnuts.
Preheat your oven to 350 degrees. Butter a round cake pan (9 by 1 ½ inch pan) and set to the side.
Melt 1 stick of butter and ½ cup of cocoa powder in the microwave, very slowly. You will want the cocoa to completely blend with the butter until it is smooth. When it’s silky, add ¾ cup sugar, ½ cup of nutella and 3 ounces of melted chocolate. Whisk in 2 eggs, add ½ cup flour and ½ tsp. salt. Fold. Make sure there are no lumps!! Pour into your cake and bake for 30 minutes.
When it is done, take it out of the oven and allow to cool for at least two hours. In the meantime, prepare the nutella mousse….
In a medium size steel bowl, add 1 cup heavy cream, 1 tsp. espresso power and 1 tsp. hazelnut extract. Whisk until the espresso powder is dissolved. Add ½ cup nutella and using an electric beater, whisk until soft peaks form, this should take around 2-3 minutes. Do not overbeat though. Cover the bowl and refrigerate for two hours. Prepare the nutella glaze now..
Add powdered sugar, nutella and milk to a medium size bowl. Whisk together until smooth.
After blanching and toasting the hazelnuts, roughly chop them and set aside.
Step 1- First start off with the cooled nutella brownie. Using a serrated knife carefully cut the brownie into two layers. Set one layer aside, leaving the other bottom layer where you will fully prepare and present it when it is done.
Step 2- Take the nutella mousse out of the refrigerator and spoon onto the bottom brownie layer. It should flow over the whole cake. Using a spatula spread over the brownie, leaving an inch or so of the edges of the brownie bare (when you put the final brownie layer on top, it will naturally push some of the mousse further.)
Step 3- Carefully put the top brownie layer over the mousse layer. Pour the glaze over the top brownie layer and spread evenly. Let is drip over the sides of the cake.
Step 4- Last but not least, sprinkle the chopped hazelnuts over the top of the cake. Buon Appetito!!