This five ingredient dessert salad is a sweet treat that's easy to make. If you need to bring a fun side dish or dessert to a potluck, then bring Pistachio Fluff. The pistachio pudding mix gives this salad a pretty green hue, and the marshmallows and crushed pineapple give it texture. This salad is as easy to make as one, two, three. One, mix the ingredients. Two, blend in the Cool Whip. Three, chill. See, it's easy!