Salted salmon, called _shiozake_ or _shiojake_ (塩鮭), is so ubiquitous in Japan that when people just talk about "salmon" (_sake_ or _shake_) they are usually referring to the salted kind rather than the raw kind (which is specifically called _namazake_(生鮭)). Salted salmon is a staple ingredient of bento, used as an onigiri rice ball filling, flaked on top of or mixed into