Shanghai — early 20th century street food
Technical analysis of Shanghai's most beloved street food: leavened dough buns filled with pork and aspic, pan-fried in a heavy iron skillet with oil until golden-crisp on the bottom, then steamed with water added to the pan to cook through, finished with sesame seeds and spring onion. The signature is the dual texture: crispy fried base meeting a steamed, pillowy top.
Caramelised, slightly charred base; steamed pillowy top; hot pork soup explosion interior; sesame fragrance — four textures and temperatures in one bite
{"Dough: slightly leavened with yeast — not the same as mantou dough; just enough fermentation for lightness","Filling identical to xiao long bao: pork and aspic; the soup is created as the aspic melts during cooking","Pan-fry technique: cold oil in cold pan; buns placed in; heat gradually — this allows time for the base to develop without burning","Steam finish: add water to hot pan and cover immediately; the steam cooks the top while the base stays crispy"}
{"The black sesame seeds and spring onion are applied after the steam lid is removed — they go on with 30 seconds remaining","Yang's Sheng Jian Bao (Yang's Fry-Dumpling) in Shanghai is the benchmark — their specific ratio and technique define the Shanghai standard","Serve immediately — the crispy bottom softens within 5 minutes"}
{"Dough over-leavened — buns become too puffy and light, losing their characteristic density","Not enough aspic in filling — no soup develops; buns become dry","Too much water in steam step — floods the base, destroying the crispy bottom"}
Land of Fish and Rice — Fuchsia Dunlop