After 10 minutes, wash the pork's intestine and transfer it into a pot.
Season it with salt, ground black pepper, and vinegar. Cover and boil for 15 minutes.
After 15 minutes, drain and set aside the pork's intestine.
Heat oil in a pot, fry the pork's intestine until half-cooked. Then transfer it into a bowl, refrigerate for 30 minutes.
After 30 minutes, heat oil in a pan, and fry the pork's intestine until golden brown.
Transfer onto a serving plate. Serve with sauce and enjoy!