Bonito flakes, also known as katsuobushi in Japanese cooking, are thin shavings of dried, fermented, and smoked bonito fish. They have a unique, intensely savory, slightly smoky flavor that is often described as being similar to bacon or anchovy. These flakes are typically off-white to light pink in color and have a delicate texture.

Bonito flakes are one of the key ingredients in dashi, a foundational broth in many Japanese dishes such as miso soup, noodle broths, and various stews. They're also often used as a garnish for dishes like okonomiyaki, takoyaki, and tofu, adding a punch of umami flavor and enhancing the overall taste profile of the dish.

The flakes themselves are quite thin and light, and they have a tendency to move or 'dance' fascinatingly in the heat rising from hot food, creating a unique visual effect.

From a nutritional perspective, bonito flakes are a good source of protein and contain healthy omega-3 fatty acids. They are low in calories and virtually free of saturated fat and cholesterol, making them a healthy choice for those watching their dietary intake.

In summary, bonito flakes are a versatile ingredient that can add a deep, savory note to a variety of Japanese dishes, and their unique properties make them a staple in any gourmet pantry.

Bonito Flakes can usually be found in the international or Asian aisle of a grocery store. If not, they might be located in the seafood section. If you can't find them in these areas, you can ask the store's customer service. Alternatively, they can also be purchased from online retailers or Asian specialty stores.