[Gopchang] meaning is “small intestines, [Gui] meaning is “broil or grilled”
Normally Gopchang gui is Beef.
You can also find pork stuff, but it named Dwaeji[meaning is pork] gopchang gui.
Gopchang gui restaurant also has another menu, but most of intestines of beef. like a tripe, big intestines, abomasum…
Frankly appearance of gopchang is not good, but if you like a Soju, try it. Taste is not spicy, the more you chew, the more flavor you get.
Usually the main ingredients of gopchang gui is beef small intestines, onion, potato and special spices of restaurant.
Tip, The taste of Gopchan gui depend on special spices of restaurant, so if you wanna taste you better be with Korean.
And I recommend you not to fill your stomach with gopchang but to eat fried rice after you finish eating gopchang.