Worcestershire sauce, sometimes shortened to Worcester sauce, is a fermented liquid condiment of complex mixture, of British origin from Worcester, and popularised by Lea & Perrins. The essential ingredients are barley malt vinegar, spirit vinegar, molasses, sugar, salt, anchovies, tamarind extract, onions, and garlic; particular brands add other spices as well. 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. Product from UK.