Stir together first 3 ingredients until blended. Spoon batter into a greased and floured 13- x 9-inch pan.
Bake at 350° for 23 minutes or until center is set. Remove from oven, and sprinkle brownies evenly with chopped candy. Return to oven, and bake 2 minutes. Remove from oven, and cool completely on a wire rack. Cut brownies into squares.