It's one quarter of Shanghai's breakfast foursome, and the classic order is to fold a youtiao inside it — so two of the four guardians get eaten in a single bite.
A round or oblong flatbread of leavened dough is brushed with sesame paste or scallion oil, topped with sesame seeds, and baked against the wall of a clay oven until the outside blisters and browns. It's usually wrapped around a stick of fried dough (youtiao) and eaten on the walk to work.
Chuan'r (Grilled Meat Skewers)
Youtiao (Fried Dough Stick)
Tanghulu (Candied Hawthorn Skewers)
Malatang (Self-Serve Spicy Broth)