Boil the potatoes, peel and let them cool. You can boil them on stove-top or using your pressure cooker. If using an Instant Pot pressure cook the potatoes on high pressure (placed on trivet with 1 cup water in the pot) for 10 minutes with natural pressure release.If cooking on stove top pressure cooker, cook for 8-9 whistles on high heat. You can simply also cook them in a pot full of water. Boil until tender.