Ingredients: 1/2 cup sugar, 3 Tablespoon margarine, 1/2 cup milk, 1 tsp baking powder, 1 tsp salt, 1 cup flour, 1 pint fresh or frozen blueberries (don't defrost). Cream margarine and sugar. Add milk and dry ingredients beating well after each addition. Place blueberries on bottom of greased 8 inch square pan. Pour batter over fruit. Mix 1/2 cup sugar and 1 tablespoon cornstarch. Sprinkle over batter. Pour 3/4 cup boiling water over all. Bake at 350 degrees for 35 minutes.