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Originally known as the silver silk candy, the legend is a section of dessert which the emperor liked to eat of Song Dynasty. Because dragon represent emperor, and candy surface is it like dragon need the candy silk of the temples from level to level to have, so also there is title of the candy that dragon must.
Dragon must candy go through long and often new and is known as one of the national skills, because its manufacture process is once show too, the persons of any times like seeing.
And true, dragon that he make must candy is it fall soft one silk silk to bite, very sweet tooth too.