FOR THE BROWNIES: – 2 cups all-purpose flour – 1/2 cup unsweetened cocoa powder – 1/2 teaspoon salt – 2 cups granulated sugar – 1 & 1/4 cups unsalted butter, melted and slightly cooled – 1/2 cup chocolate-hazelnut spread* – 4 large egg FOR THE CHEESECAKE: – 16 ounces cream cheese, softened – 3/4 cup chocolate-hazelnut spread* – 1/3 cup granulated sugar – 4 large egg – 1/2 cup hazelnuts, finely chopped (optional)