Cut the pork belly into 5cm pieces.
Slice the ginger and green onion.
Prepare a pot of boiling water and blanch the pork belly.
Sear the pork belly pieces on both sides in a pan until golden brown.
Place the seared pork belly, ginger, and green onion into a pot. Add soy sauce, sugar, cooking wine, and water.
Simmer on low heat for 1 hour and 30 minutes.
Spoon the sauce over the pork belly while finishing.