Instant Pot Mashed Potatoes

The creamiest mashed potatoes you'll ever try, made right in the Instant Pot! Free up your stove for the main meal while the instant pot keeps the potatoes warm on the side! 

Course Side Dish
Cuisine American
Keyword Instant Pot Mashed Potatoes
Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Servings 6
Calories 323 kcal
Author Stephanie


  • 6 medium Russet potatoes (about 2 lbs.)
  • 3 cups chicken broth
  • 3 cups cold water
  • 1 pinch salt
  • ½ cup sour cream
  • ½ cup whole milk
  • 6 Tablespoons butter softened
  • Salt/Pepper to taste
  • Fresh chives or parsley to garnish if desired


  1. Take out the sour cream, milk, and butter and let them come down to close to room temperature, they shouldn’t be cold when added to the potatoes.
  2. Peel the potatoes and cut them into thirds or fourths of equally-sized pieces.
  3. Add them to the instant pot. Combine the chicken broth, water, and salt and pour enough liquid in to ensure that the potatoes are covered, don’t go over the max line inside the instant pot.
  4. Cover and press the “manual” or “pressure cook” button and set the timer for 10 minutes.
  5. Once the timer goes off, release the seal valve on the pressure cooker and wait for the steam to escape.
  6. Ensure that the potatoes are fork tender. Reserve a ½ cup of the liquid and drain the rest. Use the liquid only if they are being kept warm and will be eaten later. The liquid can help them from becoming dry.
  7. Add the butter. Use a potato masher to mash the potatoes until smooth, don't over-mash the potatoes or they will become gluey instead of creamy.

  8. Stir in the sour cream and milk.

  9. Take a taste before adding more salt. Keep warm in the instant pot until ready to eat!

  10. Top them with freshly chopped chives/parsley if desired and enjoy!
Nutrition Facts
Instant Pot Mashed Potatoes
Amount Per Serving
Calories 323 Calories from Fat 144
% Daily Value*
Fat 16g25%
Saturated Fat 9g56%
Cholesterol 42mg14%
Sodium 570mg25%
Potassium 1036mg30%
Carbohydrates 40g13%
Fiber 2g8%
Sugar 2g2%
Protein 6g12%
Vitamin A 500IU10%
Vitamin C 20.5mg25%
Calcium 86mg9%
Iron 2.1mg12%
* Percent Daily Values are based on a 2000 calorie diet.