What do you do with the katsuobushi after extracting dashi? Do you just toss it to a kitchen garbage? You could use it for your compost.
Whenever I make dashi, I keep the leftover katsuobushi after dashi is extracted. Here is an easy and tasty furikake recipe you can make. Furikake is a condiment to sprinkle over hot cooked rice. As a matter of fact, this one tastes much better than store bought dry versions. My son loves it too.