Marinate pork shoulder in sauce, then grill it with onions and green onions.
Cut the pork into bite-sized pieces.
Slice the onion and green onion thinly.
Mix soy sauce, gochujang, sugar, minced garlic, and other seasonings.
Add the marinade to the pork and let it sit for 10 minutes.
Heat cooking oil in a pan and stir-fry the onion and green onion.
Add the pork and stir-fry over high heat.
When cooked, plate and serve.