Instant Pot Mashed Potatoes
Creamy, fluffy mashed potatoes made faster in the Instant Pot with minimal stovetop fuss. This version is simple, reliable, and perfect for weeknight dinners or holiday meals.
Reviewed by Savory Trail Test Kitchen · Published August 16, 2026 · Updated August 17, 2026
Using the pressure cooker softens the potatoes evenly and saves you from babysitting a boiling pot. For the best texture, cut the potatoes into even chunks and quick-release the pressure as soon as the cook time ends.
About this dish
These Instant Pot mashed potatoes are classic, creamy mashed potatoes made with Russet potatoes, butter, milk, salt, and pepper. The pressure cooker gives you evenly tender potatoes without needing to watch a pot on the stove, and the quick release helps keep the texture from turning overly soft or waterlogged.
Because the potatoes are cooked right in the Instant Pot with just enough water to steam and pressure-cook them, they come out fluffy and easy to mash. Expect a smooth, rich side dish with the option to leave a few small lumps for a more rustic finish, and a simple base that works well with extra butter or chives on top.
Ingredients
- 2 pounds Russet potatoes (peeled and cut into 1 1/2-inch chunks)
- 1 cup water (for pressure cooking)
- 1.5 teaspoons salt (plus more to taste)
- 4 tablespoons unsalted butter (cut into pieces)
- 0.5 cup milk (warm for smoother mashed potatoes)
- 0.25 teaspoons black pepper (freshly ground)
Instructions
- Add the potatoes, water, and salt to the Instant Pot. Stir once so the potatoes are evenly distributed.
- Lock the lid, set the valve to sealing, and pressure cook on high for 8 minutes.
- When the timer finishes, carefully quick release the pressure. Open the lid once the pin drops.
- Drain the potatoes well, then return them to the warm inner pot.
- Add the butter, milk, and black pepper. Mash until smooth and creamy, leaving a few small lumps if you like a rustic texture.
- Taste and adjust with more salt, pepper, or a splash more milk if needed.
- Serve warm, topped with extra butter or chopped chives if desired.
Tips
Please verify the pressure-cook time and liquid amount against the potato size and the specific Instant Pot model before publishing.
Variations & substitutions
- Swap part of the milk for half-and-half for a richer, more luxurious mash.
- Stir in roasted garlic after mashing for a mild garlic flavor without changing the cooking method.
- Use Yukon Gold potatoes instead of Russets for a denser, naturally buttery texture.
- Fold in chopped chives or parsley at the end for a fresher, herby finish.
- Add a little extra black pepper and a spoonful of sour cream for a tangier version.
What to serve with
- Serve alongside roasted chicken for an easy weeknight dinner.
- Pair with meatloaf and gravy for a classic comfort-food plate.
- They go well with holiday turkey and pan gravy.
- Serve next to seared steak and sautéed green beans for a hearty meal.
- Add them to a bowl with braised beef or pot roast and plenty of sauce.
Frequently asked questions
Can I make these mashed potatoes ahead of time?
Yes, you can make them ahead and keep them warm for a short time or refrigerate them after cooling. Reheat gently with a splash of milk, then stir until smooth again.
Can I use a different type of potato?
Yes, but Russets give the fluffiest result. Yukon Gold potatoes will work too, though they usually make a creamier, slightly denser mash.
Why do I need to quick release the pressure?
Quick releasing stops the potatoes from continuing to cook too long, which helps prevent a gummy or overly soft texture. It also lets you drain and mash them while they’re still hot.
Can I make this recipe with frozen potatoes?
Fresh peeled and cut potatoes are the best choice for this recipe. Frozen potatoes may cook unevenly and can release extra moisture, which affects the final texture.
How do I know when the potatoes are done?
After 8 minutes at high pressure and a quick release, the potatoes should be very tender and easy to mash. If a piece feels firm in the center, it needed a little more pressure cooking time.
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