Place 1 cup of water to the bottom of an instant pot.
Quarter the potatoes and add them to the Instant Pot.
Seal and cook on high pressure for 10 minutes.
Do a quick release to release the pressure from the Instant pot after the cook time.
Drain the excess liquid out of the instant pot insert.
Add in the garlic, milk, butter, salt and pepper.
Mash the potatoes with a potato masher or a hand held mixer on medium speed until all the ingredients are combined and are the desired consistency (be careful not to over mix). I like to leave a few chunks in mine.
Taste test the mashed red potatoes and add in more salt and pepper if needed.
Serve immediately while warm and enjoy!
Notes
You can use half and half instead of the whole milk for this recipe if you prefer. Refrigerate any leftovers in an airtight container for up to 5-7 days. This recipe is large and easily feeds 8-10 people. You can half the recipe if you don’t need as large of an amount, but still use the 1 cup of water to make sure the instant pot comes to pressure and then drain off the excess water before mashing the potatoes.