Ooey-Gooey Butter Cake

'''Ooey-Gooey Butter Cake Bake 350° approx. 40 to 50 minutes Crust 1 box (18.25 oz.) yellow cake mix 1 large egg 1/2 C.(1 stick butter) melted Filling 1 pkg.(8 oz.) cream cheese at room temperature 2 large eggs 1 tsp. vanilla extract 1/2 C. (1 stick butter) melted 1 box (16 oz. powdered sugar) save a little to dust top 1. Heat over to 350°. Lightly spray a 13X9X2 with nonstick spray. 2. Crust: In a large bowl, combine cake mix, egg and melted butter. Mix well until dry ingredients are mositened. Pat lightly into prepared baking pan, covering bottom and sides of pan. 3. Filling: In another bowl, beat cream cheese until smooth and creamy. Add eggs and vanilla and beat until well combined. Beat in melted butter until evenly blended. On low speed beat in powered sugar, beat until smooth. 4. Spread cream cheese mixture over crust in pan. Bake for 40 to 50 minutes, until sides are set and center is still a bit jiggly. Remove from oven and cool completely. Dust with powered sugar.'''