Bonito powder is a seasoning made from dried, fermented, and smoked bonito fish, a type of tuna found in the Pacific Ocean. The fish is first filleted, then boiled, smoked, and dried before being finely ground into a powder. Bonito powder is commonly used in Japanese cuisine, particularly in making dashi, a broth used as a base for soups, stews, and sauces. It adds a rich, savory, umami flavor to dishes and is often used as a natural alternative to monosodium glutamate (MSG). Bonito powder can also be used as a seasoning for other dishes, such as rice, vegetables, and meats.