Xuanhua: grapes, beer, Qingyuan Pavilion hot pot.
Zhangbei: Roast whole lamb
Huaian: Dried bean curd, shredded bean curd.
Pangjiabao: spiced donkey meat
Yangyuan: Zhazha cake
Chaigoubao: bacon
There are also local cuisines such as oat noodles and cakes in Zhangjiakou area.
Since there has been no yam in Zhangjiakou since ancient times, the yam we are talking about here is potato.