 Common ingredients include soy sauce, "gochutgaru" (chili powder), "mullyeot" (rice syrup), "cheongju" (rice wine), onion juice, apple juice, garlic juice, scallion juice, and ginger juice.The "gopchang" is first marinated in the seasonings and spices, then grilled on a lightly greased pan or griddle.Onions and bell peppers are often grilled together with "gopchang".