Wikipedia
Bbopgi
Bbopgi ( Hangul:뽑기), or dalgona ( Hangul:달고나), is a Korean sweet candy made from melted sugar and baking soda. It is a type of snack, that one eats or trims one's way around an outline or picture on the snack, with the object of not to break the picture. It is also popular in East Asia.
Cheap, sweet and easy to make, it's a popular street snack for children. The origin of the name comes from the act of cutting the trim off various shapes of candy. If the trimming is completed successfully without breaking the candy, the consumer receives another free bbopgi. Or if a consumer picks one with a special mark engraved on it such as a star or a flower, then s/he receives another free bbopgi.