Coconut Squares

Line a 9-inch square pan with nonstick foil. In a large bowl, combine confectioners' sugar and sweetened condensed milk. Add finely shredded unsweetened coconut and mix to evenly coat. Using red liquid food coloring, dye half the mixture. Press the red mixture into the pan, then top with the white mixture. Cover and refrigerate until firm, at least 1 hour. Cut into 1 1/2-inch squares.