Ketchup , Mustard , Relish , Mayonnaise , Horseradish , Soy Sauce and Worcestershire sauce are also well known condiments . Condiments are sometimes added prior to serving , for example a sandwich made with ketchup or mustard . Some condiments are used during cooking to add flavor or texture to the food ; barbecue sauce , teriyaki sauce , soy sauce , marmite are examples .