What are fizzy sweets covered in?

Fizzy sweets are typically coated in a layer of sour sugar, which gives them their distinctive tangy flavor and effervescent sensation. This coating can be made from a mixture of sugar, citric acid, and bicarbonate of soda, creating a fizzy reaction when they dissolve in your mouth. The sweetness of the candy is balanced by the sourness of the coating, making them a popular treat for those who enjoy a combination of flavors.