Rock candy is a type of sugar candy that consists of large sugar crystals. It is made by dissolving sugar in water and then allowing the solution to cool slowly, which causes the sugar to crystallize. The result is a sweet treat that can be enjoyed on its own or used as a decorative element in desserts and beverages. This candy is often found in various colors and flavors, making it visually appealing. Rock candy is commonly used in celebrations, such as weddings and parties, and can also be used to sweeten drinks like tea or cocktails.