1 pkg. yellow cake mix
1/4 c. oil
2 eggs
1/2 c. water
1 can pie filling (blueberry, apple, or cherry)

Preheat oven to 350 degrees. Pour oil into a 9x13 inch pan; tip pan to coat bottom. Put dry cake mix, eggs and water in pan; stir with a fork until blended. Scrape sides and spread batter evenly in pan. Spoon pie filling onto batter, use a fork to fold into batter just enough to create a marbled effect. Bake at 350 degrees for 35 to 45 minutes until toothpick inserted near center comes out clean.

Cooled cake may be sprinkled with powdered sugar or spread with Cool Whip when serving. Store cake loosely covered. Serves 15 to 18.