Wash the pork hock thoroughly and pat dry with kitchen paper towels.
Heat oil in a large pot and saute garlic until fragrant. Place pork hock and sear on all sides.
Add whole peppercorn, ground black pepper, bay leaves, salt, soy sauce, water, and sugar and bring to a boil
Lower heat and let simmer for 2 hours or until the pork is tender. If it still needs more time cooking, add more water in 1/2 cup increments until cooked.
Add bok choy let simmer for 5 more minutes or until soft. Transfer in a serving dish and serve with steaming rice. Bon Appetit!