Steak sauce is a dark brown sauce commonly served as a condiment for beef in the United States. The original sauce which 'steak sauce' is derived from is known in Britain as "brown sauce". Also derived from "brown sauce" in Japan tonkatsu sauce has a slight variation in ingredients.Steak sauce is normally brown or orange in color and often made from tomatoes, spices, vinegar, and raisins and sometimes anchovies. The taste is either tart or sweet with a peppery taste similar to Worcestershire sauce. The brand A1 Steak Sauce is a tart variant. There are also numerous regional brands that feature a variety of flavor profiles.