Frosted Chocolate Brownie Supreme
["1/2 c. + 3 Tbsp. Reduced Calorie Margarine (Softened)", "1 2/3 c. Sugar", "8 Egg Whites", "1/2 c. Nonfat Sour Cream Alternative", "1/3 c. Evaporated Skim Milk", "2 tsp. Vanilla Extract", "1 1/3 c. All Purpose Flour", "1 tsp. Baking Powder", "1/2 tsp Salt", "2/3 c. Cocoa (Unsweetened)", "Vegetable Cooking Spray", "3 c. Powdered Sugar (Sifted)", "1/4 c. Cocoa (Unsweetened)", "1/4 tsp. Salt", "1/4 c. Skim Milk", "1 1/2 tsp. Vanilla Extract"]
["1. Beat margarine at medium speed with an electric mixer until fluffy; gradually add sugar and beat well. Add", "eggs whites, sour cream, milk, and vanilla. Beat well.", "2. Combine flour and next 3 ingredients. Stir well. Add", "flour mixture to creamed mixture, mixing well.", "3. Pour into a 13 x 9 x 2 baking pan coated with cooking", "spray. Bake at 350\u00b0 for 25 minutes or until a wooden", "toothpick comes out clean.", "4. Cool in pan or a wire rack. Spread creamy chocolate", "frosting over cooled brownies and cut into squares."]
["+", "Sugar", "Egg Whites", "Milk", "Vanilla", "Flour", "Baking Powder", "Salt", "Cocoa", "Vegetable Cooking Spray", "Powdered Sugar", "Cocoa", "Salt", "Milk", "Vanilla"]