The core sugar is a classic snack in Lichuan County, Jiangxi Province. It is a local special food. As the name implies, the stuffing core (such as fried sesame or fried soybeans ground into powder or fried flour) is poured into the glutinous rice sugar (that is, maltose) fermented by malt, and manually stretched to make a long-term contract. The 1.5-inch small round tubular white candy is called "filled sugar", commonly known as "filling 'cooked' sugar." The core sugar is “thin as thin as paper, white as snow, crispy, sweet and not greasy, and the mouth is melted”.