Cut thin sliced pork belly into bite-sized pieces.
Slice the onion thinly.
Heat oil in a pan and stir-fry the pork belly.
Add onions and stir-fry together.
Add soy sauce, sugar, and cooking wine, and stir-fry until the flavors soak in.
Place the stir-fried ingredients on top of rice.
Finish with sesame oil, chopped scallions, and a sprinkle of sesame seeds.