1.Place pork in a large saucepan. Pour over enough cold water to cover. Bring to boil on high. Reduce heat to low and simmer for 1 minute. Drain pork well.
2.Meanwhile, in a medium wok or saucepan, bring all remaining ingredients, except pak choy, to the boil on high, stirring. Reduce heat to low.
3.Add pork and simmer very gently for 1 hour, until very tender.
4.Increase heat to medium. Simmer for 12-15 minutes, stirring, until sauce reduces to a thick syrup.
5.Toss pak choy through. Serve pork sprinkled with green onion and accompanied with steamed rice
You can also make this dish using pork belly.Note