Yield: Makes about 6 cups mashed potatoes. Serving size is about ¾ cup (8 servings).Instant Pot Size: You can double or triple this recipe for a 6 or 8 quart instant pot. The water amount and cooking time will stay the same. Just be sure you don’t go above the “fill” line”.Potatoes: Use potatoes with a higher starch content, like russet or Yukon gold. I don’t recommend Red potatoes because they are waxier and can yield gummy tasting mashed potatoes.Water: you need one inch of water in the bottom of the pressure cooker. Add more than 1 cup if needed.Make Ahead Instructions: Follow the recipe then keep mashed potatoes in the instant pot on the warm setting for an hour or two before serving. Stir and add a few splashes of milk if needed when it’s time to serve. Taste and adjust seasonings if needed.Dairy Free Mashed Potatoes: replace butter with dairy-free butter substitute, and add chicken broth instead of milk and sour cream.