Ooey Gooey Butter Cake - cooking recipe

Ingredients

1 box yellow cake mix (The butter kind is good)
1/2 cup margarine or 1/2 cup butter, softened
1 egg
1 cup chopped pecans (optional)
Topping
1 box confectioners' sugar
1 (8 ounce) package cream cheese, softened
2 eggs
1 teaspoon vanilla flavoring

Preparation

Mix first four ingredients.
Mixture will be thick.
Spread into greased and floured 13\" x 9\" pan.
Beat all topping ingredients together.
Pour over cake.
Bake 40 minutes or until done at 350 degrees.