Buttermint Salad 2 (13 ounce) cans crushed pineapple, undrained 1 small box lime gelatin 10 ounces miniature marshmallows 1 (7 ounce) package soft butter mints, crushed 1 (9 ounce) container Cool Whip® Mix pineapple, gelatin, and marshmallows in large bowl. Cover and refrigerate overnight. Add mints and Cool Whip® in morning and pour into a large bowl and refrigerate. Or you can pour into individual aluminum foil muffin tins and freeze. Serve while solid.