Shengjianbao is xiaolongbao's crispier, more rugged cousin. These buns are made with a thick, yeasted dough (not the thin wrapper of xiaolongbao) filled with seasoned pork and gelatin broth. They're pan-fried in a huge flat pan with oil and water, creating steam that cooks the top while the bottom develops a deep golden crust. The result: a fluffy top, a crispy bottom, and an explosion of hot broth inside. They're topped with sesame seeds and chopped scallions.
Shengjianbao originated in Shanghai in the 1920s, created by street vendors who adapted the steamed bun recipe for the pan. It became a quintessential Shanghai breakfast.