The thick soup is characteristic of this dish and you'll ask to have it sizzling (atsumori) or cold (hiyamori). Toppings embody char siu, bamboo shoots, nori, and boiled eggs, amongst others. Once you've completed the noodles, you presumably can add recent dashi into the remaining soup to diffuse it into a thin soup that you could then sip after the meal. Though ramen may be considered a one dish...