Cherry Cobbler

3 tablespoons butter or margarine, melted
1 cup all-purpose flour
1/4 teaspoon salt
1 teaspoon baking powder
1/2 cup milk
1 cup sugar
1 tablespoon cornstarch
1 cup boiling water
3 to 4 cups cherries, fresh or frozen
3/4 cup sugar

Mix 3/4 cup sugar, butter or margarine, flour, salt, baking powder, and milk together. Place cherries in the bottom of a 9 inch square pan. Spread dough over cherries. In a small bowl, combine 1 cup sugar and cornstarch. Stir in boiling water. Pour mixture over the dough. Bake at 350 degrees for 45 minutes. Serve warm.