Ketchup (or), also catsup, is a table sauce, traditionally of various flavors, notably mushroom, oyster, or walnut, but in modern times the term without modification usually means tomato ketchup, sometimes called tomato sauce, or red sauce.
Ketchup (or), also catsup, is a table sauce. Traditionally, a variety of recipes featured ketchup made of mushrooms, oysters, mussels, walnuts, or other foods, but in modern times the term without modification usually means tomato ketchup, sometimes called tomato sauce, or red sauce.