Place the blueberries in a greased 8" square baking dish. In a bowl, combine flour, sugar, milk and butter till smooth. Pour over the blueberries. Bake at 375*F. for 35-40 minutes or until golden brown and a toothpick inserted near center comes out clean. Cool on wire rack. Enjoy!
If you don't have self rising flour, here is a substitute for 1 cup.
Place 1 1/2 teaspoons baking powder and 1/2 teaspoon salt in a measuring cup. Add all purpose flour to measure 1 cup.