Henderson's Relish is a condiment produced in Sheffield in South Yorkshire, England. It is similar in appearance to Worcestershire sauce, but contains no anchovies. It is made of water, sugar and spirit vinegar with a selection of spices and colouring. It is gluten free, suitable for vegans and is approved by the Vegetarian Society.

Worcestershire sauce or Worcester sauce is a fermented liquid condiment invented by the pharmacists John Wheeley Lea and William Henry Perrins in the city of Worcester in Worcestershire, England, during the first half of the 19th century. The inventors went on to form the company Lea & Perrins.