A japanese recipe of Dashi broth using a combination of Kombu and Katsuo. Dashi most commonly utilizes a combination of kombu (kelp seaweed) and katsuobushi (dried bonito flakes), but other ingredients used to make dashi are shiitake mushrooms and niboshi (small dried fish). Dashi making has evolved over a long period of time. The backbone of all ramen is the broth, or dashi. Dashi is a clear stock that is traditionally made using kombu, Japanese sea kelp, and katsoubushi or bonito, dried fish.