Caramel corn is an American confection made of popcorn coated with a sugar or molasses based caramel candy shell. Typically a sugar solution or syrup is made and heated until it browns and becomes thick, producing a caramelized candy syrup. This hot candy is then mixed with popped popcorn, and allowed to cool. Sometimes a candy thermometer is used, as making caramel is time-consuming and requires skill to make well without burning the sugar.