Cover the pan, and start shaking it gently back and forth on the burner, using a hot pad or kitchen towel to protect your hands.
We picked up the grill with live coals and carried it (protecting our hands with gloves and hot pads) to shelter.
If you do plate this dish onto an oven-hot plate, be sure to put down a hot pad or something on the table.
To check for doneness, hold potato with a hot pad and pinch with fingers or pierce with a fork.