Sauce - Liquid, creaming or semi-solid food served on or used in preparing other foods

"In cooking, a sauce is a liquid, cream, or semi-solid food, served on or used in preparing other foods. Most sauces are not normally consumed by themselves; they add flavor, moisture, and visual appeal to a dish. Sauce is a French word taken from the Latin salsa, meaning salted. Possibly the oldest recorded European sauce is garum, the fish sauce used by the Ancient Romans; while doubanjiang, the Chinese soy bean paste is mentioned in Rites of Zhou in the 3rd century BC. - Wikipedia"