Dalgona (달고나) or ppopgi (뽑기) is a korean candy made with melted sugar and baking soda. it was a popular street snack in the 1970s and 1980s, and is still eaten as a retro food. when a pinch of baking soda is mixed into melted sugar, the thermal decomposition of the baking soda releases carbon dioxide, which makes the liquidized sugar puff up, and it becomes a light and crunchy candy once cooled and hardened. typically, the creamy beige liquid is poured on a flat surface, pressed flat, and stamped with a patterned mold. eaters try to trim their way around the outline or picture on the snack without breaking the picture. traditionally, if this trimming is completed without breaking the cand...

Source: Wikipedia