The spicy gochu-jang sauce used to marinate the meat is more suitable for pork than it is for beef. Fleshy belly cuts taste best. If lean shoulder or tenderloin is used, cut it into thin slices for a soft texture. It tastes even better to grill marinated chicken in the gochu-jang sauce. Onions, carrots, perilla leaf and cabbage may be stir-fried together according to the diner’s preference.