close-up of cooked mashed potatoes with butter, garlic, and fresh herbs

Instant Pot Mashed Potatoes

Looking for a quick side dish that basically cooks itself? Instant Pot Mashed Potatoes are easy, delicious, and perfect every time! Buttery and fluffy mashed potatoes that can be dressed up with garlic and herbs this is a classic dinner side dish that comes together in 30 minutes. #mondayismeatloaf #instantpotmashedpotatoes #bestinstantpotmashedpotatorecipe
Course Side Dish
Cuisine American
Keyword instant pot mashed potatoes, instant pot potato, instant pot side dish
Prep Time 8 minutes
Cook Time 22 minutes
Total Time 30 minutes
Servings 10 servings
Calories 217kcal
Author Tina


  • 5 pounds potatoes peeled, and cubed
  • 8 tablespoons unsalted butter
  • 1/3 cup milk or enough to make the potatoes a creamy consistency
  • salt and pepper to taste

Optional Ingredients

  • 1 tsp garlic minced
  • 2 tbsp fresh herbs chopped


  • Peel and cube 5 pounds of potatoes (you can cook half this amount, and then halve the remaining ingredients.
  • Put 1 1/2 cups of water in the Instant Pot, and place the potatoes inside a mesh basket into the Instant Pot. 
  • Cook on high pressure for 10 minutes, and then do a natural pressure release of 10 minutes.
  • Remove water from Instant Pot, set to saute function, and melt butter. If adding minced garlic then add once butter is melted to saute until fragrant or about 30 seconds. 
  • Add the potatoes back to the Instant Pot to mash, or put everything into your serving bowl to mash. Add the milk, salt and pepper, and if desired some of your favorite chopped herbs. 
  • Serve immediately or refrigerate in an airtight container for up to one week.


Serving: 1serving | Calories: 217kcal | Carbohydrates: 28g | Protein: 6g | Fat: 9g | Saturated Fat: 5g | Cholesterol: 24mg | Sodium: 27mg | Potassium: 951mg | Fiber: 5g | Sugar: 0g | Vitamin A: 355IU | Vitamin C: 27mg | Calcium: 81mg | Iron: 7.4mg