What is the sticky stuff next to the roasted pig head?

Cumin or Thirteen Incense.

Cumin powder has the effects of increasing appetite, calming and calming the nerves. It contains a large amount of vitamins and trace elements, which can help to remove the fishy smell of food and make the food more delicious. Secondly, it can play a role in sterilization, digestion and digestion. It is often used as a seasoning in daily life, but you need to be careful not to eat too much.