Steak sauce is a dark brown sauce commonly served as a condiment for beef, in the United States. The original sauce from which "steak sauce" is derived is known in Britain as "brown sauce".
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. Three major brands in the U.S. are Lea & Perrins, Heinz 57, and A1 Steak Sauce (a tart variant). There are also numerous regional brands that feature a variety of flavor profiles. Several smaller companies and specialty producers manufacture steak sauce, as well, and most major grocery store chains offer private-label brands. These sauces typically mimic the slightly sweet flavor of A1 or Lea & Perrins.
Heinz 57 steak sauce, produced by H. J. Heinz Company, is unlike other steak sauces in that it has a distinctive dark orange-yellow color and tastes more like ketchup spiced with mustard seed. Heinz once advertised the product as tasting "like ketchup with a kick".