1 (16 oz.) can crushed pineapple
1 pkg. sm. marshmallows
1 sm. Cool Whip
2-3 drops vanilla (opt.)
Cherries (opt.)

Melt marshmallows in microwave. Add pineapple. Cool to room temperature. Add whipped topping and vanilla. Add cherries if desired. Refrigerate. Easy to make. Delicious.