Cut the pork leg meat into bite-sized pieces.
Slice the onion, green onion, and carrot into easy-to-eat pieces.
In a bowl, mix gochujang (Korean chili paste), chili powder, soy sauce, sugar, minced garlic, sesame oil, and black pepper to make the marinade.
Add the marinade to the prepared pork and let it marinate for 10 minutes.
Heat cooking oil in a pan and stir-fry the green onion first to make scallion oil.
Add the onion and carrot and stir-fry together.
Add the marinated pork and stir-fry over medium heat.
Once the pork is cooked, drizzle with sesame oil, sprinkle with sesame seeds, and finish.