3 cups blackberries
2 cups sugar
1 1/2 cup flour
1 cup milk
1 stick butter

Cook blackberries for 10 minutes. Add 1 cup sugar and 1 stick butter while cooking. Put in 9 x 12 baking dish. Mix 1 cup sugar, flour and milk together. Pour over blackberries.

Bake for 30-35 minutes at 350°F or until brown on top.