Worcestershire sauce, or Worcester sauce, is a widely used fermented liquid condiment originally manufactured by Lea & Perrins, in Midland Road, Worcester, England. It is an important ingredient in Caesar salad and in a Bloody Mary.

The genuine product, manufactured to the original recipe, available in the U.K., comprises malt vinegar (from barley), spirit vinegar, molasses, sugar, salt, anchovies, tamarind extract, onions, garlic, spices, and flavoring.

It may also contain vinegar, molasses, corn syrup, water, chili peppers, soy sauce, pepper, tamarinds, anchovies, onions, shallots, cloves, asafoetida and garlic.

There are powdered, concentrate and kosher versions of it around the world.

Worcestershire sauce is a brand of Lea & Perrins.