Prepare gochujang, onion, green onion, and pork.
Heat cooking oil in a pan and sauté the green onion and onion.
Add the pork and stir-fry until cooked.
Add gochujang, sugar, and minced garlic, then stir-fry.
Season with soy sauce and pepper.
When all the ingredients are well mixed and cooked, it's done.