The food he eating is called "Mam" it's be like Isaan sausage and is a food of the northeastern region. Made from the beef liver mixed with beef, seasoned with MSG, Garlic and Sticky rice. Season to your liking and stuff it with dried beef intestines. Then it is dried in the sun to give it a sour taste. It is a type of food preservation for Thai people. Very delicious 👍👍😋😋😋😋