1 pkg. white cake mix
1/4 c. oil
2 eggs
1/2 c. water
1 (20 to 23 oz.) can of your favorite pie filling

Preheat oven to 350 degrees. Pour oil into a 13 x 9 x 2 inch pan. Tilt pan to cover bottom. Put cake mix, eggs, and water into pan. Stir with a fork or spoon until blended (about 2 minutes). 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. Use a knife to loosen cake from sides. Cut and serve directly from pan. Store cake loosely covered.