Cathedral Window Cookies Recipe

Place marshmallows and nuts if desired in a large bowl; set aside. In a heavy saucepan, melt chocolate chips and butter over medium-low heat. Pour over marshmallow mixture and mix well. Cover and refrigerate for 1 hour, stirring occasionally. Shape marshmallow mixture into a 12-in. roll; wrap in waxed paper. Refrigerate for 4 hours or until firm. Unwrap and cut into 3/8-in. slices; cut slices in half. Yield: about 4-1/2 dozen.