Here are a couple pictures of a PNG Mumu. It is one method of cooking done here and considered a nicer meal because it takes more time to do. First, we peeled some sweet potatos, then...
the women prepared the fire...
then once the stones in the fire have gotten nice and hot, they punch out the fire and place these banana leaves on top. Then they put the potato and tapiok inside the leaves and wrap them up.
Then they put the hot stones back on top of the leaves and let the hot stones cook the food. After about an hour they enjoy the meal!