En papillote

En papillote (French pronunciation: [ɑ̃ papijɔt]; French for "enveloped in paper"[1]), or al cartoccio in Italian, is a method of cooking in which the food is put into a folded pouch or parcel and then baked.

Indonesian cuisine has a variation on en papillote using leaves to steam food.

[4] With large leaves (e.g. banana, Xanthosoma, or cassava)[5][6][7] widely available across the archipelago, Indonesians have long used them in food preparation.

[8] The Indonesian method requires no additional moisture, and in some dishes, the leaf wrappings may also be eaten.

Chinese Beggar's Chicken is encased in mud or clay before being heated directly on a fire.