Gwanghui Kalguksu is an old-style noodle shop in Seoul that serves kalguksu in anchovy broth and dak kalguksu. The dak kalguksu uses the same broth as the basic kalguksu with chicken added on top, and the noodles are thick and chewy. If the kalguksu is not enough, you can take gonggibap yourself, and you can ask for more noodles when ordering. The shop is small and has the style of a long-established eatery.