Mix together: 1 package yellow cake mix, 1 egg, 1 stick melted butter. Pat into a 9×13 greased and floured pan.
Mix together: 8 oz. softened cream cheese, 2 eggs and 2 cups powdered sugar. Mix until creamy and pour over cake in the pan.
Bake at 350 degrees for 30 minutes. Lightly sprinkle powdered sugar over the top, cook another 20 minutes.