Quanjude, a roast duck, is of course the most famous, but I prefer to eat a cheap shop, which is thinner. The cheap shop is a stewing stove, which is different from Quanjude's practice. If you want to make it cheaper, the cheap shop is very good. Quanjude also has a branch, but Qianmen's is not very good, so you should be careful when choosing it. . .
For hot pot, if you are a foreigner, of course, try the copper pot in old Beijing. The best one is Jubaoyuan, but go early because there will be a queue. Xiangyu Zhai in Drum Tower is also great and cheap. It's a shop opened by old Beijing grandpa. . . Haidilao is very popular, but it is not a hot pot in Beijing, and the team of Haidilao really can't afford it. It may not be eaten for 2 hours, so why bother? . .
For Beijing specialty snacks, go to Jiumen Snack in Houhai, Huatiandi Snack in Di 'anmen and Huguo Temple Snack in Xinjiekou, and it's almost the same. It's recommended to go to Jiumen Snack, which has more meat. . . If you eat near Houhai of Gulou, I can help you design a food route. I'll ask you if you have other questions. . .
In addition, to arrange your time reasonably, you must take into account the problems of traffic jams and waiting. There are people everywhere in Beijing now. . .