Katsuobushi Dashi is a simple Japanese stock recipe, based on dried flakes of tuna.
Fish Stock
Niban Dashi Recipe
Niban Dashi is often used to simmer vegetables in.
Niboshi Dashi Recipe
Often used as a base for miso soup. Niboshi are dried sardines.
Quick Fish Stock
A very good stand-in for fish stock that would otherwise take hours to cobble together.