Ferrero Rocher Macarons with Nutella Ganache and Hazelnuts - Yummy Gusto

Ingredients

• 2 large egg whites (approximately 1.75 ounces), at room temperature
• 3 tablespoons granulated sugar
• 1/8 teaspoon cream of tartar
• 1/2 cup almond flour, sifted
• 1/3 cup powdered sugar, sifted
• 2 teaspoons unsweetened cocoa powder, sifted
• Powdered or gel brown food coloring (optional)
• 4 ounces milk chocolate (about 2/3 cup), finely chopped
• 2 tablespoons Nutella
• 3 1/2 tablespoons heavy cream
• 2 tablespoons unsalted butter
• 1/2 teaspoon hazelnut extract (optional)
• 1/4 cup chopped toasted hazelnuts
• 1/4 cup melted milk chocolate
• 2 Ferrero Rocher chocolates, roughly chopped
• 1 to 2 sheets (1.5 inch) edible gold leaf (optional)