SWEET SAUCES. Sauce- a flavored liquid blend of ingredients that adds flavor and enhances the appearance of the food. Fudge- a soft confection made of butter, sugar, chocolate . A dessert sauce is a sauce used for desserts. ... Dessert sauce adds flavor, moisture, texture and color to desserts, may be cooked or uncooked, and is sometimes prepared as a hard sauce with the addition of alcoholic beverages. It is used in various manners to add flavor to and enhance the visual presentation of desserts.