A packet of finely flaked tuna. Katsuobushi (dried, shaved tuna flakes) is used in so many Japanese dishes it would be impossible to name them all! From miso soups, broths and noodle bowls, to simple tofu plates, natto (fermented soybeans), chahan, okonomiyaki, takoyaki, salads and even puddings. Extremely rich in flavour, and brilliant even as a simple topping on rice, katsuo is a staple for any Japanese cupboard.