Xiekehuang Pastry: Lard Flakes, Sesame Shells and the Oven-Wall Baking of Huangpu District, Shanghai

炉壁贴出千层酥，咸甜两馅一壳金。Lú bì tiē chū qiān céng sū, xián tián liǎng xiàn yī ké jīn – The oven wall bakes out a thousand flaky layers; two fillings, savoury and sweet, under one golden shell.

蟹壳黄 xièkéhuáng xiekehuang – “crab shell yellow” – is the round flaky biscuit Shanghai’s tea tables crumb over, and the address is an oven: the old bakery counters of 黄浦区 Huángpǔ Qū Huangpu District, Shanghai, where the discs go up by hand against the 炉壁 lúbì oven wall and come down bronzed like a cooked crab’s shell, which is the whole name and none of the recipe (worth confirming which counters still bake on the wall). No crab inside: the name answers to shape and hue – flat, domed, sesame-studded – and its craft is lamination: a 水油皮 shuǐyóupí water-lard dough wrapped around a 油酥 yóusū pure-lard shortening, folded and rolled into a thousand leaves that shatter at a bite, the sesame crust above and the filling below – 葱油 cōngyóu scallion oil or 鲜肉 xiānròu fresh pork on the savoury side, 白糖 báitáng sugar or 玫瑰 méigui rose on the sweet.

The making is a fold-and-bake grammar written for a biscuit graded by its shatter, and it leans 酥 sū flaky-crisp plus 香 xiāng fragrant to match the tea table. The anchor is the shell itself: an honest 蟹壳黄 flakes in dry plates rather than crumbs, eats dry without greasing the fingers, and parts in clean layers – a greasy disc means stretched lard or a cool bake (worth confirming each bakery’s lard ratio). The oven wall decides the rest: the discs are slapped by hand onto the hot brick, where direct heat blisters the base and chars the rim darker than the crown – the uneven bronze the name is graded by – and the bake is minutes, not a shift, so the pastry’s whole calendar is the batch (worth confirming which counters still run the wall). Judge it warm, plain, and by the flake on the paper bag.

The honest grade is the bake clock against the gift box. What gets oversold is the souvenir: boxed 蟹壳黄 in airport tin and tea-shop cellophane travels well and eats badly, the lamination gone biscuit-soft and the filling praline-sweet. What repays the effort is the counter where the batch just came down – the shell still warm, the flakes still snapping – and the test is the purchase hour, not the shopfront age: a corner bakery at ten beats a heritage marquee at five (worth confirming which counters bake twice daily). The naming trap: ask a newcomer what the crab filling is and they search the card; the name is a colour, the filling is 葱油 cōngyóu or sugar, and the seller who explains this without being asked is the one whose lard is real.

The bakery queue keeps the dish’s census. A counter grandmother bagging the morning batch put it plainly: the tourists photograph the name and the old gentlemen order by filling without looking up – four scallion-oil, two sugar, wrapped separately, because the sweet must not sit against the savoury – and the regulars buy for the hour, not the week, because a 蟹壳黄 that rides home in a pocket is half the biscuit it was at the counter; her own measure, she says, is the customer who opens the bag on the pavement, and the flake-fall on her step each morning is the receipt the oven writes (worth confirming the details – every counter grandmother keeps her own census).

The same 黄浦区 Huángpǔ Qū Huangpu District thread runs on: the jelly-melted baskets of 南翔小笼包 Nánxiáng xiǎolóngbāo Nanxiang xiaolongbao steam by 豫园路85号 Yùyuán Lù 85 hào 85 Yuyuan Road, the crisp-bottomed 生煎包 shēngjiānbāo shengjian pancakes hiss in iron pans down 四川中路 Sìchuān Zhōnglù Sichuan Middle Road, the fried-chop-and-rice-cake plate of 排骨年糕 páigǔ niángāo paigu niangao holds its corner by 西藏南路 Xīzàng Nánlù Xizang South Road, and the red-sauce tables of 本帮菜 běnbāng cài Benbang classics steam along 福佑路 Fúyòu Lù Fuyou Road – one district, four more ovens.

Words and Names

• 蟹壳黄 xièkéhuáng / xiekehuang, “crab shell yellow” · the bronze flaky biscuit the oven wall names - 炉壁 lúbì / oven wall · the hot brick the discs are slapped onto by hand - 水油皮 shuǐyóupí / water-lard dough · the outer dough that wraps the flake - 油酥 yóusū / lard shortening · the inner fat that builds the thousand layers - 酥 sū / flaky-crisp · the texture the shell is graded by - 葱油 cōngyóu / scallion oil · the savoury filling the old customers order by - 鲜肉 xiānròu / fresh pork · the meat filling of the savoury side - 白糖 báitáng / white sugar · the plain sweet filling - 玫瑰 méigui / rose · the perfumed sweet filling of the festival tins - 黄浦区 Huángpǔ Qū / Huangpu District · the Shanghai district holding the old oven walls

What the Locals Know

• Buy by the batch hour: a 蟹壳黄 is graded the hour it leaves the wall – ask when the bake went up, and buy inside that hour or not at all (worth confirming each counter’s bake times).
• Run the flake test: the shell should part in dry plates and never grease the bag – shortening-stretched lard shows in the fingers first.
• Keep the fillings apart: savoury 葱油 cōngyóu and sweet 白糖 báitáng are wrapped separately, and the old customers check the wrapping before the price.
• The name is a colour, not a filling: no crab inside – the bronze shell-shaped bake named the biscuit, and anyone selling crab paste inside is selling something else.

flowcloud would say that the 蟹壳黄 xièkéhuáng is the lard flakes, sesame shells and the oven-wall baking of Huangpu District, Shanghai – a 油酥 yóusū discipline where the 炉壁 lúbì bronze colours the shell while the 葱油 cōngyóu and sugar fillings split the order – and that the honest move is to buy by the batch hour, run the flake test, and keep the fillings apart, because the lard built the layers and the wall built the name. All checked October 2026.

Where to find it: Huangpu District Huángpǔ Qū, Shanghai – the old bakery counters of the former county-city lanes and the food streets around 云南南路 Yúnnán Nánlù Yunnan South Road and the 城隍庙 Chénghuángmiào City God Temple quarter, where 蟹壳黄 xièkéhuáng still comes off the oven wall in morning and mid-afternoon batches (worth confirming the details – which counters bake on the wall today and their batch hours); a biscuit runs to street-snack money, so call it worth confirming the details rather than a fixed number. Xiekehuang pastry is the lard flakes, sesame shells and the oven-wall baking of Huangpu District, Shanghai, flake before foil. All checked October 2026.