Cut the pork shoulder into bite-sized pieces.
Slice the onion, green onion, and garlic.
Make the sauce with gochujang, soy sauce, sugar, red pepper powder, minced garlic, etc.
Mix the pork and sauce together and marinate.
Add oil to a pan and stir-fry onion and green onion.
Add the marinated pork to the pan and stir-fry.
Once the meat is cooked, add garlic and chopped chili peppers and fry together.
Serve on a plate.