Dashi is a traditional Japanese broth that serves as a base for many dishes. The primary ingredients include kombu, a type of dried seaweed, and katsuobushi, which are dried, fermented, and smoked bonito fish flakes. These ingredients provide a rich umami flavor, essential for authentic Japanese cuisine. To prepare dashi, kombu is soaked in water and then heated, followed by the addition of katsuobushi. The mixture is simmered briefly, allowing the flavors to meld. This simple yet flavorful broth can be used in soups, sauces, and various dishes, enhancing their taste and depth.