A great tip when you need to prepare for a large dinner.
Make a cut all around the potato, lengthwise. Try to slice only the skin, not the actual potato.
Step 2 Boil it
Put the potato in a pot of boiling water. Boil until it is soft inside
Step 3 Cool it off
Plunge the potato in ice water for 10 seconds. The surface of the potato will shrink, while the center remains hot.
Step 4 Remove the skin
Rub the potato with both hands and watch the skin fall right off.
