Prepare thinly sliced pork belly.
Slice the onion thinly.
Heat oil in a pan and stir-fry the pork slices.
When the meat is cooked, add the sliced onion and stir-fry together.
Season with soy sauce, cooking wine, and a little sugar.
Place the cooked meat and onions over rice.
Finish with chopped green onions and black pepper.