1/2 cup brown sugar
1 tablespoon cornstarch
1/2 cup water
3 cups blueberries
1 tablespoon lemon juice
1 cup flour
1/2 cup white sugar
1-1/2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup milk
1/4 cup (1/2 stick) butter, softened
Preheat oven to 375 degrees F. Cook brown sugar and cornstarch in water until thickened, about 5 minutes. Add berries and lemon juice; spoon mix into a buttered 2-quart dish and set aside. Sift flour, white sugar, baking powder, and salt together; blend in milk and butter. Spoon over the berry mixture and bake for about 45 minutes.