Blanch pork knuckle in boiling water. Take out and rinse with cold water. Drain and set aside.
Sauté ginger and green onion in 2 tbsp oil until fragrant. Add pork knuckle and pan-fry until golden. Sprinkle with wine.
Add fried garlic. Stir in seasoning mix and bring to boil. Simmer for about 2 hours until tender. If you like a softer texture, add 1-2 cup boiling water and cook for another 1-2 hours.
Remove the bone of the knuckle. Pour the sauce over the pork knuckle and serve hot.