On caramel candy bars list Wikipedia the language links are at the top of the page across from the article title. As the sugar heats, the molecules break down and re-form into compounds with a characteristic colour and flavour.

Most likely that comes from Late Latin calamellus ‘sugar cane’, a diminutive of calamus ‘reed, cane’, itself from Greek κάλαμος. Caramel sauce is made by mixing caramelized sugar with cream. Depending on the intended application, additional ingredients such as butter, fruit purees, liquors, or vanilla can be used. Caramel sauce is used in a range of desserts, especially as a topping for ice cream. Milk caramel manufactured as square candies, either for eating or for melting down. Alternatively, all ingredients may be cooked together.