Nutella Gooey Butter Cake

Cake:
1 (18 1/4-ounce) package devil's food cake mix
1 egg
8 tablespoons butter, melted

Filling:
1 (8-ounce) package cream cheese, softened
1 cup Nutella
3 eggs
1 teaspoon vanilla
8 tablespoons butter, melted
1 (16-ounce) box powdered sugar

Preheat oven to 350 degrees F. Combine the cake mix, egg, and butter and mix well with an electric mixer. Pat the mixture into the bottom of a lightly greased 13 by 9-inch baking pan.

To make the filling: In a large bowl, beat the cream cheese and Nutella until smooth. Add the eggs, vanilla, and butter, and beat together. Next, add the powdered sugar and mix well. Spread Nutella mixture over cake batter and bake for 40 to 50 minutes. Make sure not to overbake as the center should be a little gooey.

Serve with fresh whipped cream.