You cannot talk about Beijing cuisine without dedicating an entire article to Peking duck. It is the most emblematic dish of the city.
I tried three different restaurants during my stay. The ritual of carving the duck at the table and wrapping it in thin pancakes is quite a spectacle. To reach the most famous spots I used transport in Beijing without any trouble.
If you travel to Beijing, book a table in advance at the historic restaurants: they fill up fast.