Cut the chicken thigh into bite-sized pieces.
Finely chop the onion and kimchi.
Add cooking oil to a pan and stir-fry the chicken thigh pieces.
When the chicken is half cooked, add the onion and kimchi and continue stir-frying.
Add rice and stir-fry well to mix all ingredients evenly.
Season with soy sauce and black pepper.
Finish by drizzling sesame oil on top.