Soup Dumplings

The soup-filled dumpling is a technical category before it is a specific dish. The common thread across its variants — xiaolongbao, shengjianbao, tangbao, and regional relatives — is aspic: a gelatinous stock (typically pork bone, sometimes with crab roe) that is solid at room temperature, mixed into the filling, wrapped into the dumpling, then liquefied again during cooking. What results is a small parcel containing both meat and broth, which must be eaten carefully to avoid the soup spilling or scalding.

**Xiaolongbao** (小笼包, 'small bamboo steamer bun') is the most internationally recognised form. The wrappers are thin, pleated at the top into 18 folds by convention, and steamed in bamboo baskets of six or eight. Shanghainese xiaolongbao are served at Din Tai Fung and its many imitators worldwide, but the original reference point is the Nanxiang style from Nanxiang town in Jiading, Shanghai. For more detail, see the dedicated *Xiaolongbao Classic* entry.

**Shengjianbao** (生煎包) is the pan-fried version — a thicker wrapper, a more substantial pork filling (often without the aspic, or with less of it), cooked in a flat pan so the base is crispy and the top is steamed. Sesame seeds and spring onion decorate the top. The texture contrast — crunchy base, soft top, hot filling — is a different experience from the delicate xiaolongbao. Shengjianbao is quintessentially Shanghainese street food, sold by specialist stalls and dedicated chains. For more detail, see the *Shengjianbao* entry.

**Tangbao** (汤包, 'soup bun') refers to the large-format version, particularly associated with Yangzhou and Nantong. These buns are sometimes so full of broth that they must be drunk through a straw inserted through the top of the wrapper — an order will typically arrive with a straw already inserted. The crab roe tangbao at speciality restaurants in Yangzhou contains a full serving of crab-enriched stock inside a single large bun.

Regional variants extend the family further: **guotie** (锅贴, potstickers) are sometimes made with aspic filling; **xiao long xie** from Changzhou is a thick soup bun with crab emphasis; Kaifeng's **灌汤包** are a northern variant with thicker wrappers and lamb filling.

The eating method for xiaolongbao and small tangbao follows a specific ritual: lift carefully with chopsticks (or a soup spoon placed underneath), bite a small hole in the side to sip the soup first, then eat the rest. Dunking the whole bun in vinegar before sipping is the Shanghainese approach — the vinegar cuts the fat and adds brightness.