The sweet potato, the English name is The hot candied sweet potatoes, which not only represents the thick history of China's five thousand years, but also the crystallization of human wisdom. It has the status of four major inventions in China in different ages in the Northeast. Candied sweet potatoes have a significant significance in the Northeast dinner table. In the northeast, the dinner started with a variety of wine-professional appetizers such as big salad, preserved egg tofu, and nut spinach, but the final "big general" only had sweet potatoes.