Double Chocolate Hazelnut Crepe Cake

Name: Double Chocolate Hazelnut Crepe Cake
Ingredients: Chocolate Crepes:; 2 cups all-purpose flour; 6 Tbsp. cocoa powder; 2 Tbsp. granulated sugar; 1/8 tsp. salt; 2 large eggs; 2 large egg yolks; 4 Tbsp. unsalted butter (melted and cooled); 3 cups whole milk; Chocolate Hazelnut Mousse:; 2 Tbsp. Hills Bros. Hazelnut Cappuccino powder; 3/4 cup semi-sweet baking chocolate (chopped); 1 cup heavy whipping cream; Topping:; 1 Tbsp. confectioner's sugar (sifted); 1 tsp. Hills Bros. Hazelnut Cappuccino powder; 1 Tbsp. granulated sugar; 1/3 cup shelled hazelnuts (roughly chopped)