Instant Pot Mashed Potatoes (Creamy, No Draining)

Instant Pot mashed potatoes are a holiday and weeknight hero: no big pot of boiling water, no draining, and no watching the stove. The potatoes pressure cook in minutes, then you mash everything right in the pot.

You get creamy, fluffy mashed potatoes with less mess and a free stovetop burner.

Recipe at a glanceJump to instructions ↓
  • Prep10 min
  • Cook10 min
  • Total20 min
  • Serves6
  • CourseSide Dish
  • CuisineAmerican
  • Ingredients6
  • Steps5

Written by · Updated September 2026

Why you’ll love this instant pot mashed potatoes

  • No draining: the potatoes cook in just enough liquid.
  • Fast: about 10 minutes at pressure.
  • Frees the stove: perfect for busy holiday cooking.
  • Creamy and fluffy: restaurant-quality with pantry staples.

Ingredients you’ll need

Yukon gold potatoes give a naturally buttery, creamy mash; russets make a fluffier one.

  • 3 lbs Yukon gold potatoes, peeled and cut into 2-inch chunks
  • 1 cup water or chicken broth
  • 1/2 cup warm milk
  • 4 tablespoons butter
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper

How to make instant pot mashed potatoes (step by step)

  1. Add the potato chunks and water or broth to the Instant Pot.
  2. Seal the lid, set the valve to sealing, and cook on high pressure for 8 minutes.
  3. Quick-release the pressure, then carefully open the lid. The potatoes should be fork-tender.
  4. Add the butter, warm milk, salt, and pepper, and mash directly in the pot to your preferred texture.
  5. Taste, adjust the seasoning, and serve warm.

Tips for the best results

  • Cut even chunks so the potatoes cook uniformly.
  • Warm the milk so it does not cool the potatoes and make them gluey.
  • Do not over-mash. Overworking releases starch and turns them pasty.

Variations & substitutions

  • Stir in roasted garlic or garlic powder for garlic mashed potatoes.
  • Fold in sour cream and chives for a loaded version.
  • Use half chicken broth for extra savory flavor.

Storage & make-ahead

Refrigerate for up to 4 days. Reheat with a splash of milk, stirring until creamy again. Mashed potatoes also freeze for up to 2 months.

Frequently asked questions

How long do potatoes take in the Instant Pot?

About 8 minutes at high pressure for 2-inch chunks, plus time to come to pressure and a quick release.

Do I need to drain the potatoes?

No. They cook in about a cup of liquid that gets mashed right in, so there is nothing to drain.

Why are my mashed potatoes gluey?

Over-mashing or using a food processor releases too much starch. Mash by hand just until smooth.

Can I make them ahead for a holiday?

Yes. Keep them warm on the Instant Pot’s warm setting, adding a splash of milk before serving.

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