Instant Pot Mashed Potatoes are the ultimate shortcut for America's favorite side dish. No peeling, boiling or schlepping, and you get perfect, fluffy mashed potatoes every time thanks to the pressure cooker. It's a must-have holiday recipe!
Note: This recipe yields 6 cups * See recipe footnote about increasing batch size
Place trivet or steam basket inside the stainless inner pot of the Instant Pot *see recipe footnote
Pour in WATER and SALT, then stack whole POTATOES on the trivet.
Close and lock the lid, turn pressure valve knob to the “sealing” position.
Select MANUAL or PRESSURE COOK for 10 minutes on HIGH pressure. When cook cycle completes, allow it to sit undisturbed for a 10-minute natural pressure release (NPR).Note: From dry-to-done, this process takes about 30 minutes.
Carefully release any remaining steam. Unlock and open the lid, remove the trivet, and drain potatoes (there will be very little liquid, so you could leave it in there).
To the potatoes, add BUTTER, HEAVY CREAM, SALT, and PEPPER; mash with a vegetable masher to the desired consistency (do not overwork the potatoes).
Serve warm. You can keep mashed potatoes in the Instant Pot on "keep warm" mode, if preferred.
Storage and Reheat Instructions
Refrigerate mashed potatoes in an airtight container up to 2 days in advance of serving.
To reheat, add a splash of liquid (half-and-half, heavy cream, or milk). Heat over medium-high heat on the stove until warmed through, stirring as needed. Or, microwave the mashed potatoes on a 50% power setting in two-minute intervals until they’re warmed through, stirring as needed.
Do I need the trivet?
It's not required but since there is only 1 cup liquid in this recipe, I use it as a precaution against potential "burn warnings".
How many potatoes can you cook in the Instant Pot?
The 6-quart Instant Pot Duo can accommodate up to 5 lbs whole potatoes and up to 7 lbs chopped potatoes (the smaller they are, the more you can fit).To increase the batch size, the same recipe instructions apply. Do not change the pressure cook time ... the Instant Pot magically does this for you.
How many potatoes per person for mashed potatoes?
A good rule of thumb to calculate how many lbs of mashed potatoes you need to make is 1 cup per person. My mashed potato recipe uses 3 lbs of potatoes yielding 6 cups, so it serves 6 people.