Worcestershire sauce is made of dissolved fish

worcestershire sauce

Worcestershire sauce, usually shortened to Worcester sauce, is a fermented liquid condiment. It is often an ingredient in Welsh rarebit, Caesar salad, Oysters Kirkpatrick, and sometimes added to chili con carne, beef stew, hamburgers, and other beef dishes.

Worcestershire sauce is made with anchovy, a family (Engraulidae) of small, common salt-water forage fish. The anchovies are soaked in until they are totally melted down.