Gravlax

Gravlax is a term used to describe a special way to prepare salmon. During the Middle Ages, gravlax was made by fishermen, who salted the salmon and lightly fermented it by burying it in the sand above the high-tide line. The word gravlax comes from the Scandinavian word grav, which means literally "grave" or "hole in the ground" (in Swedish, Norwegian, Danish and Estonian), and lax (or laks), which means "salmon", thus gravlax is "salmon dug into the ground". Today fermentation is no longer used in the production process. Instead the salmon is "buried" in a dry marinade of salt, sugar, and dill, and cured for a few days. As the salmon cures, by the action of osmosis, the moisture turns the dry cure into a highly concentrated brine, which can be used in Scandinavian cooking as part of a sauce. This same method of curing can be used for any fatty fish, but salmon is the most common.