The market · Fish and seafood · East Asia

Katsuobushi

Skipjack tuna fillets simmered, smoked over wood again and again, and dried until they're hard as a plank — the best are then cured with mould for months. Shaved, they make dashi with kombu, and top okonomiyaki and cold tofu.

smoky · woody · savoury · fishy

What to do with it

Classics built on it

Kinds

Arabushi
Smoked only — smokier and sharper; most bagged flakes.
Karebushi
Mould-cured too — rounder, cleaner and deeper.
Itokezuri
Thread-thin shavings, for garnish.

If you can't find it

Japanese grocers, in bags of shavings.

  1. A small handful in the stock, strained out
    You lose the smoke; it's fishier and rounder.

Goes with

Knowing it

Where to buy
Japanese grocers, in bags of flakes; or a whole block and a shaving box. Once open, keep flakes airtight — the aroma fades in days.
A little history
Its savoury compound, inosinate, was identified by a student of Kikunae Ikeda's, a few years after Ikeda found glutamate in kombu.
Worth knowing
For dashi, add it to kombu dashi just off the boil, wait a minute or two until the flakes sink, then strain without squeezing — squeezing clouds it and makes it fishy.

Kitchens that keep it in

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