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5 from 1 vote

Old Fashioned Pistachio Pie (Watergate Pie)

This easy Pistachio Pie, also known as classic Watergate Pie, is a creamy no-bake dessert made with pistachio pudding, pineapple, marshmallows, and a homemade crust.
Prep Time15 minutes
Cook Time15 minutes
2 hours
Course: Dessert
Cuisine: American
Keyword: Pistachio Pie, Watergate Pie
Servings: 6 servings
Author: Anne Walkup

Ingredients

  • 1 3.4 ounce box instant pistachio pudding mix
  • 1 8 ounce container Cool Whip
  • 1 20 ounce can crushed pineapple in juice (you will reserve some)
  • 2 cups mini marshmallows
  • 1 cup chopped pistachios or pecans

Crust Ingredients:

  • 1 1/2 cups of graham cracker crumbs
  • 1 cup of quick cooking oats
  • 1 cup of nuts finely chopped we used pistachios, can use pecans or walnuts
  • 3 tablespoons of brown sugar
  • 12 teaspoons of butter melted

Instructions

Crust Instructions

  • Combine all ingredients and press into a greased 9 inch pie plate.
  • Bake in a preheated 350 degree oven for 15 minutes.
  • Let cool before adding pie filling.

Filling Instructions

  • Drain close to a ¼ cup of the juice from the can of pineapple.
  • Add pudding mix, pineapple and remaining juice to a large bowl. Stir to combine.
  • Fold in Cool Whip, then stir in marshmallows and nuts.
  • Place filling in cooled homemade pie crust.
  • Chill before serving, about 2 hours.
  • Store in refrigerator for up to 3 days