1 pkg. yellow cake mix (plain, without pudding)
1 egg, slightly beaten
1/2 c. butter, melted
1 tbsp. vanilla
1 pkg. (8 oz.) cream cheese
1 lb. powdered sugar
2 eggs, slightly beaten

Preheat oven to 325 degrees. Combine cake mix, 1 egg and melted butter. Press into an ungreased 9 x 13 inch Pyrex pan. (Do not use a metal pan.) Mix remaining ingredients and spread over top. Bake for 50 minutes.