Boiled sweets are a type of confectionery that are made by boiling sugar, water, and other ingredients together. The term 'boiled sweet' can refer to a variety of different types of candy, including humbugs, acid drops, bullseyes, and lemon drops. Humbugs are a traditional British sweet, usually black and white striped, made from boiled sugar, glucose syrup, and flavorings. Acid drops are a type of hard candy made from sugar, citric acid, and flavorings. Bullseyes are a type of boiled sweet made from sugar, glucose syrup, and flavorings, and are usually round with a hole in the middle. Lemon drops are a type of boiled sweet made from sugar, glucose syrup, and lemon flavoring.