Instant Pot Mashed Potatoes

5 from 4 votes

Make creamy, buttery Instant Pot mashed potatoes in minutes! This easy recipe delivers perfect results for holidays and weeknight dinners.

Prep Time15

Cook Time10

Total Time25

Course: Side Dish

Cuisine: American

Keyword: instant pot mashed potatoes, pressure cooker mashed potatoes

Servings: - 8 servings

Calories: 377kcal

Add the potatoes, water, and a couple pinches of salt to the Instant Pot, lock the lid in place, and set to manual, high, and 10 minutes cook time.
3 pounds Russet potatoes, 1 cup water
Add the butter and milk to a small pot and bring to a simmer on the stovetop. Remove from the heat and set aside.
½ cup unsalted butter, 1 cup milk
When the timer goes off, turn the valve to “quick release.” Drain any remaining water and transfer the potatoes to a large mixing bowl. Mash the potatoes with a potato masher until smooth.
Slowly add the hot milk and butter to the potatoes and stir with a spatula to combine. Add the sour cream and stir. Season to taste with salt and black pepper.
½ cup sour cream, Kosher salt and black pepper

Cut potatoes evenly for even cooking: If they're all different sizes, they won't all be done cooking at the same time.
Don't skip warming the milk and butter: Warm milk and butter before mashing to avoid gummy texture.