Double Chocolate Brownies
["1 c. sugar", "1/4 c. vegetable oil", "1/4 c. plain fat-free yogurt", "1 tsp. vanilla extract", "3 egg whites", "1/2 c. all-purpose flour", "1/3 c. cocoa", "1/4 tsp. baking powder", "1/4 tsp. salt", "vegetable cooking spray", "1/4 c. semi-sweet chocolate morsels"]
["Combine the first 5 ingredients in a bowl; beat with mixer at medium speed until well blended. Combine flour, cocoa, baking powder and salt; stir well. Add to sugar mixture; beat just until dry ingredients are moistened. Pour mixture into a 9-inch square baking pan coated with cooking spray. Bake at 375\u00b0 for 25 minutes; remove from oven and sprinkle with chocolate morsels. Let stand 3 minutes or until morsels soften; spread over brownies using a knife. Let cool on a wire rack. Makes 16 brownies."]
["sugar", "vegetable oil", "yogurt", "vanilla extract", "egg whites", "all-purpose", "cocoa", "baking powder", "salt", "vegetable cooking spray", "semi-sweet chocolate morsels"]