Jangsu Seoul Sundaega is a restaurant in Seoul that serves spicy sundae guk. Even the regular version comes with a spicy broth, and the set includes sundae and a few slices of meat. The broth has a sharp, instant-noodle-soup style heat, and it is eaten with a generous amount of deulkkae powder added. The regular version is quite spicy, so those who cannot eat spicy food should order the white version.