Bacalao fish is a type of salted and dried codfish that is popular in the Mediterranean and Latin American cuisines. It is usually soaked in water before being cooked, as the salt content is quite high. The term 'BACALAO' is derived from the Portuguese and Spanish words for codfish. This type of fish is often served with potatoes, onions, and olives, and is a staple of many traditional dishes. The three-letter acronym COD is an abbreviation for codfish, which is the main ingredient in BACALAO fish.