Corn syrup is a thick, sweet liquid made from cornstarch. Food processors use it to sweeten baked goods, candies, canned fruits, ice cream, and soft drinks. It also flavors ketchup, peanut butter, salad dressings, processed meats, and many other foods. Corn syrup gives creams and candies a smooth texture. It also attracts and holds moisture, and so it helps prevent baked goods from becoming stale.