The jar of gum is "chestnut".

The history of the delicacy of stir-fried chestnuts with sugar can be traced back to the Song Dynasty and was widely spread. In the Qing Dynasty, it had a special name - "dumping sugar", which combined its unique taste and aroma. Shown vividly. This delicacy not only tastes delicious, but also has a long history and rich cultural connotation. There is a poem describing sugar-fried chestnuts like this: "Piles of chestnuts are fried to a deep yellow color. When guests arrive, they have long conversations and ask for wine to taste. The lights are half-burned in the middle of the night, and people shout at the door to pour sugar." This shows that sugar-fried chestnuts are a great dish for entertaining guests and a heart-warming delicacy on a cold winter night.

The reason why sugar-roasted chestnuts are called sugar-filled sugar is that during the process of roasting chestnuts, the sugar becomes viscous after being heated, and then melted by heat into a chestnut-shaped syrup. This syrup binds the chestnuts tightly together, creating a gum-like texture and mouthfeel. In addition, the outer layer of sugar-roasted chestnuts is coated with sugar, which also gives them a unique taste and aroma.

The origin and habitat of chestnuts:

Except for a few provinces and regions such as Qinghai, Ningxia, Xinjiang and Hainan, they are widely distributed in the north and south, ending in the suburbs of Guangzhou in Guangdong and ending in Guangxi. Pingguo County, in southeastern Yunnan, crosses the river mouth and goes south to the Shaba area of ??Vietnam. It is often cultivated in low hills, gentle slopes and river beaches at an altitude of 100-2500 meters. Chestnut likes to grow in areas with sufficient sunshine and humid climate. It is a positive tree species and is cold and drought tolerant. It has high soil requirements and likes sandy soil.

The lowest vertical distribution of chestnut in China is in coastal plains with an altitude of less than 50 meters, such as Tancheng, Shandong and Xinyi, Jiangsu; the highest is 2,800 meters. The vertical distribution varies depending on the climate zone and terrain. In Hebei, China, it is mostly distributed in ravines at an altitude of 100-300 meters; in Henan, it is generally found in valleys and flatlands below 900 meters and in hilly and mountainous areas; in Hubei, it is mostly distributed on hillside areas of about 1,000 meters; They are mostly distributed between 500 and 1,200 meters in Fujian; they are distributed above 1,500 meters in Hanyuan, Sichuan, and above 2,500 meters in Yunnan.