Sai Ua is a Northern Thai-style sausage grilled over a smoky coconut husk fire. The word ua in the Northern dialect means to stuff: Sai Ua therefore denotes a sausage that is strong together into a long coil. It is made of ground pork mixed thoroughly with kaeng khua chilli paste.
Other ingredients are added to acheive the desired flavor, and finely, the sausage was grilled for many hours over a smoky coconut husk fire until the meat was cooked and acquired a special aroma. Nowadays, to hasten the process, the sausage is first fried and then baked.
It is served in fairly thick slices and eaten with preserved ginger and fresh vegetables such as green shallots, corianders, and hot chilles.