"Watergate salad is a classic dessert salad that's been loved by generations. This recipe for Little Old Lady's Watergate Salad is Grandma's favorite recipe to bring to a party or potluck. Nobody can resist the combination of pistachio pudding, Cool Whip, walnuts, grapes and pineapple in this delicious dessert. What's even better, it comes together in mere minutes, so you don't have to do any baking or layering! Just dump the ingredients in a bowl, stir, and refrigerate...."