The Naked Tribe shows Bopho how to cook/bake a Turkey packed in a cover of clay like mud.
It is still known as
Mud Baking. This is used for fish and game. Clean the food thoroughly, enclose it in a coat of mud at least an inch thick, bury it in the ashes of the fire and keep a brisk fire on it for thirty to sixty minutes, according to the size of the meat or fish to be roasted.
(GC Book 1: Earth)