procedure

 
Rub pork leg with some soy sauce to help browning process
Brown pork leg on all sides in a frying pan (2-3 minutes each side
Stir fry ginger, garlic, and green onions until fragrant (2-3 minutes)
Add soy sauce, rice wine, sugar, mirin, and star anise
Add pork leg and braise for 2 hours in a pot (or 30 minutes on high with pressure cooker)
Remove the pork and reduce down the sauce about 50%
After pork has cooled, slice and pour sauce on pork
Garnish with cilantro or chopped green onions