Caramel is sugar that's been melted and browned. At such high temperatures, however, sugar can be finicky. You can start the caramel off by heating a mixture of sugar and water (wet caramel) but it's tricky to prevent it from crystallizing. Or, you can heat the sugar by itself (dry caramel) in which case you have be more attentive about it burning. These instructions will outline how to make a simple dry caramel, while the video below offers some advice for making wet caramel.Note that this is not the same as making caramel candy or caramel sauce, which require additional ingredients like butter, cream, or milk.