1. Boil enough water to cover the amount of potatoes you will be preparing. 2. while water is heating score potatoes all the way around the middle with a very sharp knife. 3. Drop potatoes into the briskly boiling water for about 15 minutes 4. lift potatoes out and place one at a time into a bowl of water with ice for about 10 to 15 seconds until cool to the touch. 5. Grab both ends of the potato and slip it out of the jacket.