Chuzhou’s famous product is Langya crisp candy, formerly known as “noodle candy” and “Dong candy”, which originated in the late Ming Dynasty. It uses pure white sesame seeds, white sugar powder, Fuqiang powder, maltose, etc. as raw materials. The produced sugar cubes are uniform in thickness, as thin as paper, with clear cross-section layers, in the shape of a spiral, and milky white in color. They are soft in the mouth, delicate and free of impurities, and have a rich aroma, sweet but not greasy. Literati praised it: "Fragrant." It attracts foreign guests from the clouds and attracts the immortals in the cave with its taste. It is rich in nutrients and suitable for all ages. Named for Langya Mountain, it is a traditional and famous pastry in Chuzhou. Its "flavor is sweet but not greasy, waxy but not sticky, crispy but not crumbly", suitable for all ages and deeply loved by the masses. Crispy candy is also called "noodle candy", "Qinyou crisp candy" and "Dong candy". In the late Ming Dynasty, Chuzhou workshops began to use wheat flour, sesame seeds, and sugar as raw materials, roasted and processed them, commonly known as "noodle sugar" (small packets of sugar). In the early Qing Dynasty, two masters named Qin and You modified the flour candy by coating it with glutinous rice bones, so it was also called "Qin You crisp candy". The latter master named Dong carefully transformed Qinyou Crispy Candy, folding multiple layers of glutinous rice and thin bones with flour sugar, which is called "Dong Candy". Another literati wrote: "During the Chongzhen period of the Ming Dynasty, Dong Xiaowan, a famous geisha from the south of the Yangtze River, was good at cooking, skilled in making flower dew, and could make sweets and pastries with her skillful hands. Once the talented man Maoxiang (also known as Pijiang) fell ill, Dong Xiaowan ingeniously prepared sesame seeds , white sugar, fried noodles, syrup, sesame oil and other raw materials, carefully make cubes of crisp sugar, and give it to Maoxiang. "The sugar is crispy, sweet, and appetizing." Later, it was spread among the people and people called this candy "Dong candy". "Chongchuan Guiwenlu" also records: "Dongtang was made by Dong Xiaowan, a concubine of Maochao people (named Maoxiang)." In the early years of the Republic of China, there were many front shops and back shops in Chucheng for making pastries. The crisp candy (also known as Dong candy) produced by stores such as "Zhang Sanyi", "Bian Yuanchang" and "Cao Hengxing" is famous far and wide.