1/2 c. butter
2 c. sugar
3 c. flour
4 eggs
2 tsp. vanilla
1 can pie filling

Cream butter and sugar. Add eggs one at a time. Add vanilla and flour gradually. Pour 2/3 mixture in greased 9 x 13 inch pan. Add filling and then add rest of mixture. Marbelize. Bake at 350 degrees for 45 minutes.