The term 'Burger Enhancer' refers to condiments that can be added to a burger to enhance its flavor. The two most common condiments used for this purpose are KETCHUP (7 letters) and Catsup (6 letters). KETCHUP is a sweet and tangy sauce made from tomatoes, vinegar, sugar, and spices. Catsup is similar to KETCHUP but is usually spicier and less sweet. Both condiments are widely used to add flavor to burgers and other dishes.