2 (21 oz.) cans blueberry pie filling
1 (18 1/2 oz.) box white cake mix
1 egg
1/2 c. soft butter

Spread pie filling into 9 x 13 inch pan. Cream the butter, add the egg and cake mix. Stir. Will be stiff. Spoon over filling. Bake at 350 degrees for 40 to 45 minutes or until golden brown.