Gather all the ingredients.
Cut pork belly into ~1/2 inch thickness. The length of each piece can vary but it's best to be around 1-2 inches long per slice. Note - it's easier to slice meat more precisely if semi-frozen.
Finely chop green onion stalk and set aside.
Grate garlic and ginger with a grater and transfer into a small mixing bowl. Combine Sesame Oil, salt and black pepper, mix well and set aside.
Bring a large Teflon frying pan up to temperature on high, should take around 1 minute. Once up to temp, reduce to medium-high heat, transfer pork belly and cook for about 3-5 minutes per side until nicely browned. Note - after about 5 minutes, the oils from the pork belly will start to accumulate in the pan and you will start deep frying. This is where the pork belly will really crisp up.
Transfer the pork belly onto a holding plate along with any residual oils.
In a new large Teflon frying pan, place on high heat, add sauce from step 4) and spread it out evenly. Once sauce starts to bubble/become fragrant (about 1 minute), add back the pork belly. Mix pork belly around until well coated and transfer onto serving plate. Top with green onions and enjoy!