4 c. blueberries, fresh or frozen
1 (3 oz.) box Jello, blackberry, cherry, raspberry, etc.
1 c. sugar
1 box Jiffy cake mix, white or yellow
1/3 c. melted butter
1 c. water

Preheat oven to 350 degrees.

Spread blueberries in rectangular pan. Sprinkle on package of Jello, then cup of sugar. Sprinkle on package of cake mix. Pour on melted butter. Pour on water. Bake 1 hour. Refrigerate. Serve with vanilla ice cream.