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Image of Instant Pot Horseradish Mashed Potatoes in front of an Instant Pot

Instant Pot Horseradish Mashed Potatoes

5 from 1 vote
These Instant Pot Creamy Horseradish Mashed Potatoes are rich, velvety, and packed with bold flavor. Made with tender Russet potatoes, butter, sour cream, garlic, and prepared horseradish, this easy side dish delivers the perfect balance of creamy comfort and zesty kick. Using the Instant Pot makes the potatoes incredibly smooth while saving time in the kitchen—perfect for holiday dinners, Sunday suppers, or busy weeknight meals. Garnish with fresh chives or parsley for a fresh finishing touch.
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Servings: 4
Course: Side Dish
Cuisine: American
Ingredients Method Video

Ingredients
  

  • 2 lbs. Russet potatoes peeled and cut into 2” pieces
  • 2 tsp. kosher salt divided
  • 2 small cloves garlic or one large clove peeled
  • 4 T unsalted butter
  • ½ C sour cream
  • 2 T horseradish
  • ½ tsp. ground black pepper
  • Chives optional
  • Parsley optional

Method
 

  1. Place the potatoes and garlic into the inner pot of your Instant Pot along with 1 teaspoon of kosher salt. Cover the potatoes by one inch of water. Place the top onto the pot and seal.
  2. Set the Instant Pot to High Pressure, “more” or “high” pressure. Set for 8 minutes.
  3. When the timer goes off, press or slide the release valve. Once all the pressure has been released, the pin will drop. It is now safe to open the Instant Pot. Don’t shut the Instant Pot off. Leave it on warm.
  4. Take the inner pot out and strain the potatoes and garlic. Place the strained potatoes and garlic back into the inner pot and back into the base. You want the potatoes dry out. This will take one to two minutes.
  5. Now, add in the butter and let it melt. Stir in the sour cream, horseradish, remaining 1 teaspoon salt and ground black pepper. Stir it all together. Mash with a potato masher or use an electric mixer to beat till smooth. Hit Cancel on the Instant Pot. Serve with chopped chives or parsley (optional). Enjoy!
  6. Note: These potatoes are my husband Eric’s favorite. The horseradish gives a little zip but is not overpowering.

Video