Cut the pork shoulder into bite-sized pieces.
Finely chop the onion and kimchi.
Heat cooking oil in a pan and stir-fry the pork shoulder.
Season the pork with salt and pepper.
Once the meat is cooked, add the onion and kimchi and stir-fry together.
Add the rice and mix well with the other ingredients while stir-frying.
Season with gochujang (Korean red chili paste) and soy sauce.
When everything is evenly cooked, add sesame oil and mix.
Transfer to a plate and sprinkle with sesame seeds.