Mix together:

1 yellow cake mix
1 lg. egg (beaten)
1 stick butter (softened)

Press in greased 9x13 inch pan.

Mix together:

1 box powdered sugar
2 lg. eggs (beaten)
1 tsp. vanilla
1 (8 oz.) cream cheese (softened)

Spread over above mix. Bake 350 degrees, 45 minutes. Cut into squares when cool. Dust with powdered sugar.