Place whole potatoes on the trivet in the Instant Pot with one cup of water.
Close and secure lid.
Set valve to Sealing.
Select [Manual] program.
Press + or - to set cooking time of 12 to 15 minutes, depending on the size of your potatoes.
Set to High Pressure and wait 10 seconds for pot to beep and let you know it is heating up. It will take around 10 minutes for your Instant Pot to reach pressure, and then the clock will begin to count down. When the time reaches zero, the Instant Pot will beep again and switch to the [Keep Warm] mode, and begin to count up.
While keeping your face and hands away, Quick Release the valve by covering with a towel and turning steam release to allow the steam to escape. Open the lid and stick a fork in the potatoes to check for doneness. The potatoes should still be firm, but not at all crunchy. And the fork should go into the potato easily.
Notes
Use as baked potatoes. Top with all the usual ingredients: Butter, sour cream, shredded cheese, crumbled bacon, green onions, ham, broccoli, or chili!