Scallion Pancakes (Cong You Bing): The Crispy, Flaky Chinese Street Classic

Crisp on the outside, chewy within, and shattering into a hundred flaky layers when you bite into it — the scallion pancake (葱油饼, cong you bing) is Chinese street food at its simplest and most addictive.

Not a Pancake, Not a Roti

Despite the English name, cong you bing shares little with Western pancakes. It is more akin to a laminated flatbread — the dough is rolled thin, brushed with oil and scallions, then rolled up and flattened again. This creates dozens of thin layers that separate and crisp during pan-frying, producing a texture similar to a savory croissant.

The technique dates back centuries. Chinese cooks developed lamination long before European pastry chefs used it for croissants and puff pastry. The principle is the same: alternating layers of dough and fat create steam during cooking, which pushes the layers apart.

The Shanghai Street Version

In Shanghai, scallion pancakes are a breakfast institution. Street vendors cook them on large flat griddles, the sizzle of dough in hot oil providing the city’s morning soundtrack. The best versions are thin and crackly, with visible green onion flecks peeking through golden layers.

The legendary Ah Da Scallion Pancake in Shanghai’s Former French Concession drew lines of two hours for its impossibly flaky bing. The secret? A precise ratio of hot oil dough to cold water dough, creating the perfect balance of crisp and chew.

Making It at Home

The dough uses just flour, hot water, and a pinch of salt. The critical step is the lamination: roll the dough into a rectangle, brush with oil and scallions, roll it up like a log, coil it into a spiral, then flatten it. Each fold doubles the number of layers.

A well-seasoned cast iron skillet provides the even heat needed for a golden, evenly crispy crust. The pancake should be pressed flat in the pan and cooked until the layers visibly separate — a sign that the lamination has worked its magic.

Beyond the Classic

Modern variations include egg-filled cong you bing, cheese-stuffed versions, and even sweet iterations with sugar and sesame. But purists insist the original — just dough, oil, scallions, and salt — is the only one worth making. It is, after all, one of China’s simplest perfect foods.