Nutella Gooey Butter Cake

Nutella Gooey Butter Cake 1 package Devil's Food Cake Mix 1 large egg 8 tablespoons melted butter Filling 1 (8-ounce) package cream cheese, softened 1 cup Nutella 3 large eggs 1 teaspoon vanilla 8 tablespoons melted butter 1 (16-ounce) box powdered sugar Preheat oven to 350 degrees and grease a 9x13-inch baking dish. Using an electric mixer, beat the cake mix, 1 egg, and 8 tablespoons melted butter until mixed well. Press mixture into bottom of prepared pan. Make the filling. Beat Nutella and cream cheese until smooth. Beat in the eggs one at a time. Beat in vanilla and butter. Add the powdered sugar and mix well. Spread mixture over cake batter. Bake 40 to 50 minutes. Do not overbake. It should be gooey in the middle.