1 lg. lemon cake mix
1/2 c. melted butter
1 egg, slightly beaten
1 (8 oz.) pkg. cream cheese
2 eggs
2 1/2 c. powdered sugar
1 tsp. vanilla

Combine cake mix, melted butter and egg. Mix with fork until moist. Grease bottom of 9 x 13 inch pan only. Pat mixture into pan. Beat cream cheese, powdered sugar, 2 eggs, and vanilla. Pour over first layer. Bake at 350 degrees for 30 to 40 minutes. Cool. Sprinkle with powdered sugar. Cut into bars.