Peel the potatoes and cut them into medium size chunks. Then boil them in water until a fork test shows that they are cooked enough. I drain the water and add whatever I have in the refrigerator to make them creamy and fluffy. I use either milk, sour cream, whip cream, butter, and salt, then mash them with my stainless steel masher. You can cook them in your pressure cooker as well. Easy Peasy!