You’ll Need:Brownie Shell 2/3 cup butter or margarine 4 ounces semisweet chocolate 2 cups granulated sugar 4 eggs, well beaten 1 1/2 cups flour 1 teaspoon baking powder 1/2 teaspoon salt 1 tablespoon vanilla extractDirections : Melt butter with chocolate in saucepan over low heat. Remove from heat and add