1.
dried sardines (for making broth)
Small sardines or anchovies that have been boiled and dried, used primarily to make dashi (soup stock). A fundamental ingredient in Japanese home cooking.
Etymology
Literally "煮る (to boil) + 干す (to dry)" — describing the production process of boiling small fish and then drying them.
Usage
煮干しだし is one of the main types of Japanese soup stock, alongside 鰹節 (bonito flake) dashi and 昆布 (kelp) dashi. It produces a more robust, fishy flavor and is particularly common in 味噌汁.
Also called いりこ in western Japan, especially in the Kansai and Shikoku regions.