Ultra-crispy Chinese scallion pancakes, rich and succulent thanks to a lard filling, then finished in the oven for the perfect texture.

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You smell it before the pancake even arrives : scallions sizzling in hot lard on a blazing iron griddle. The cong you bing browns and blisters, and the first bite crackles before yielding to a supple, elastic center.

In a good one, steam has lifted the layers apart without soaking them in grease, and your fingers stay almost clean. This street food needs only four things : flour, fat, heat, and scallions. It seems too simple to be that good… until the first bite.

Sheng jian bao — Another crisp, pan-fried Shanghai specialty : sheng jian bao

What is cong you bing ?

Cōng yóu bǐng (葱油饼) translates roughly as “scallion-oil bing.” The word bing matters : in Chinese cuisine, it refers to a whole family of wheat flatbreads, not the equivalent of a thick crêpe.

The dough is kneaded rather than poured, and its lift does not come from fermentation, but from steam swelling between thin films of fat and separating the layers. The center stays elastic, never spongy like a leavened da bing, nor thin like a jianbing or a Korean pajeon made with a runny batter.

The method starts with tang mian, a boiling-water dough that gelatinizes part of the starch and softens the gluten, allowing it to be rolled out almost translucent without shrinking back.

The dough is spread with yousu, a mixture of hot lard, flour, salt, and sometimes five-spice powder, then topped with a layer of green scallion stems. The whole thing is rolled into a tight log, coiled into a spiral, and flattened without crushing it, trapping the fat and tiny pockets of air.

In Shanghai, the xian jian hou hong (先煎后烘) finish first sears the pancake in fat, then transfers it to the oven : the griddle creates the blistered crust, while radiant heat cooks the center.

Biang biang noodles — In the same family of hand-worked wheat doughs : biang biang noodles

From wheat fields to the streets of Shanghai

Cong you bing belongs to the long wheat-growing tradition of northern and eastern China. In ancient texts, bing was a broad term covering many wheat preparations, whether boiled, steamed, or grilled.

As early as the 6th century, the agricultural encyclopedia Qimin Yaoshu described these methods and already noted the use of animal fats to enrich doughs, a direct precursor to the fat that defines the scallion pancake. Sesame seeds, introduced via the Silk Road, also gave rise to hubing, a radiant-heat flatbread sprinkled with seeds.

Congee — At breakfast, it is often dipped into a bowl of piping-hot congee

Under the Song dynasty, the growth of cities transformed these rural foods into street food. Chronicles such as Dongjing Meng Hua Lu describe capitals where vendors sold oil pancakes at all hours.

The modern version took shape in the stalls of Shanghai, where double cooking became a signature : the crust is browned first, then heat and steam finish the center. Artisans such as “A Da” made this thick, springy, fried-then-roasted style famous.

One clarification is in order. The story that cong you bing inspired pizza via Marco Polo comes from a recent parody, not a documented source. Its flakiness comes from the know-how of street artisans, precise heat control, and the repetition of well-practiced gestures.

The key ingredients in cong you bing

A wheat flour with about 10 to 11% protein provides enough structure without the rubbery chew of bread flour.

Hot water does the rest : adding most of the liquid at around 90 to 100 °C gelatinizes part of the starch and weakens the gluten, allowing the dough to be stretched paper-thin. A little cold water restores just enough spring, and a rest evens out the moisture.

In the Shanghai version, lard does more than add flavor; it creates the layers. Semi-solid at room temperature, it forms barriers between the sheets of dough, then melts as the steam pushes them apart.

Rendered poultry fat comes close, but liquid oils soak into the dough, while butter adds water and dairy notes that throw off the balance between fat and scallion.

Char siu — For a heartier meal, serve a little char siu on the side

The yousu, hot fat mixed with flour and salt, distributes the richness and protects the rolled-out dough from the moisture of the scallions. The green stems provide the aroma : tender, washed, thoroughly dried, and finely sliced, because the white parts can pierce the dough and release too much water.

Fine salt seasons the layers without tearing the sheets, while a heavy iron or cast-iron griddle ensures even browning. Used on its own, sesame oil is too dominant and strays from the classic profile.