If peeling potatoes, do so first (we prefer peeling some and leaving the skin on a few for a bit of texture, but feel free to skip peeling for more rustic texture or to peel all for smooth and creamy potatoes). Then cut potatoes into ~1 inch uniform chunks and add to Instant Pot (DO NOT use the trivet) with water or broth.
Cover with lid, press “PRESSURE COOK”, and set to high for 5 minutes. It will take ~5 minutes to come to pressure before beginning the 5 minute countdown. NOTE: For larger batches, increase proportions of potatoes, water, and seasonings, but leave cooking time the same.
Once the timer goes off, carefully quick release, making sure to avoid steam coming from the release valve. If you can’t get to it right away, it’s also okay to allow a natural release.
Check the potatoes with a knife to ensure all are easily pierced and very easy to mash. If they’re not, put the lid back on and “keep warm” for 5-10 minutes more or until all potatoes are tender to allow for easy mashing.
There’s no need to drain any water out as it will be used to help mash the potatoes. This also helps retain more nutrients from the potatoes. Use a potato masher (or large fork) to mash the potatoes. Then add butter of choice, garlic (optional), and salt and pepper.
Mash until desired consistency is reached. Mash more for creamier potatoes, less for chunkier potatoes.
Taste and adjust flavor as needed, adding more salt or pepper to taste, butter for buttery flavor/richness, or dairy-free milk as needed to thin (just be sure not to add too much or your mash can become runny).
Serve hot, garnish with parsley (optional) or more butter, salt, and pepper. Store leftovers covered in the refrigerator up to 3-4 days, or in the freezer up to 1 month (though best when fresh). Reheat in the microwave or on the stovetop, adding more butter or milk of choice as needed.
*Nutrition information is a rough estimate calculated with unpeeled potatoes, water, Miyoko's vegan butter, the lesser amount of salt, and without optional ingredients. *For larger batches, increase proportions of potatoes, water, and seasonings, but leave cooking time the same. *Cook time includes the time it takes for the Instant Pot to pressurize.