Kawali

This is how most people in the third world cook their food.  In the Philippines where I grew up, I have first hand experience with this kind of cooking.  The local folks get whatever wood they can find to fire up the makeshift stove.  An iron kettle, which is called Kawali in most dialects, is used to practically cooked anything.  The smoke from the firewood is terrible as they are mostly humid.  Air pollution control was unheard of.  Growing up, I would stand by the fire - fascinated how things were done.  By the time it was all done, my face would be black with soot and my eyes hurting from the smoke.  This practice continues to this day.