Ketchup (also catsup, tomato sauce, or red sauce) is a sweet and tangy food sauce, typically made from tomatoes, vinegar, a sweetener, and assorted seasonings and spices. The sweetener is most commonly sugar or high-fructose corn syrup. Seasonings vary by recipe, but commonly include onions, allspice, cloves, cinnamon, garlic, and celery. Ketchup is often used as a condiment with various, usually hot, dishes including french fries (chips), hamburgers, sandwiches and grilled or fried meat. Ketchup is sometimes used as a basis or ingredient for other sauces and dressings.
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