Aunt Joyce's Pistachio Salad

I make this quite a bit for holidays and family gatherings.

1 box instant pistachio pudding

1 (20 ounce) can crushed pineapple, drained

1 small container Cool Whip

1 cup mini marshmallows

Nuts and maraschino cherries (optional)

Mix dry pudding with Cool Whip.  Fold in crushed pineapple and marshmallows.  Add nuts and cherries if desired.