They would split the fish, secure it skin-side down to a wood plank and place the plank vertically, facing the fire but outside the fire ring, to slowly cook.

NPR: Where There's Smoke, There's Flavor

Plums wrapped in Prosciutto, all kinds of pizza, vegetable side dishes and even dessert can be cooked on a wooden plank.

NPR: Where There's Smoke, There's Flavor