Ooey Gooey Butter Cake

Ingredients
1 16.5-ounce yellow cake mix
2 eggs
12 tablespoons butter or 1 1/2 sticks melted
1 teaspoon vanilla extract
Topping for cake:
1 8 ounce package cream cheese softened
1 egg
1 teaspoon vanilla extract
3 cups powdered sugar
Instructions
Do not make this cake according to the directions on the cake mix box. Mix the cake mix, eggs, melted butter and vanilla extract by hand in a mixing bowl. Spray a 9 x 13 cake pan with cooking spray and press the cake mixture into the pan. This makes the bottom layer of the cake.
Mix the topping ingredients with a mixer and spread over bottom cake layer.
Bake cake in a preheated 350 degree oven for 40 to 45 minutes until top of the cake is golden brown. Cut in squares to serve.