A charcoal-oven flatbread from Jinyun in Lishui, Zhejiang: a round of leavened dough wrapped around minced pork and preserved mustard greens (梅干菜), brushed with malt sugar and sesame, then slapped onto the searing wall of a barrel oven to bake. The crust comes out crisp and blistered, the inside soft and savory-sweet from the fatty pork and dark, fragrant greens. Backed by a county brand-building drive, it has grown from a local snack into an industry of more than eight thousand shops at home and abroad.
Jinyun sesame cake is an old charcoal-oven snack of the Lishui hills, long made by households on the cylindrical barrel oven. What changed it is recent: Jinyun county turned the cake into a branded county industry, holding an annual sesame-cake festival for over a decade and imposing a unified scheme — one registered trademark, one set of shopfront, recipe, ingredient and operating standards, plus government-run baker training. The numbers grew fast: by 2024 the trade counted more than eight thousand shops, over twenty thousand direct workers, output worth tens of billions of yuan, and a reach into more than a dozen countries including the United States, Italy and Spain.
You eat it straight off the oven, too hot to hold. The crust shatters and flakes, glazed amber from the malt sugar and studded with toasted sesame; underneath it turns chewy, then soft. The filling is the point: fatty minced pork rendered into the dark, savory-sweet preserved mustard greens, the greens carrying a deep fermented fragrance that the pork fat rounds out. The malt-sugar glaze gives it a faint caramel sweetness against the salt, and a good one smells of charcoal smoke.
The barrel oven does the work. Charcoal at the base drives the inside of the drum to roughly 560 to 600°C and the clay wall to around 260 to 280°C, and the dough cake is slapped directly onto that wall. Radiant heat off the hot clay blisters the surface and sets a thin crisp crust in minutes while the leavened crumb stays soft inside — far hotter and faster than a home oven. The malt-sugar wash browns through Maillard and caramelization into the amber glaze and helps the sesame stick, while the preserved mustard greens, salt-cured and sun-dried, contribute the concentrated savory-sweet, fermented depth that fresh greens never could.
Variations
Pork with preserved mustard greens is the classic Jinyun filling, but shops also turn out versions with extra fatty pork, scallion-and-meat, or sweet bean paste. Some bakers crack an egg into the cake near the end of the bake. Beyond the cake itself, the county brand also pairs it with a local noodle and wonton; outside Zhejiang, shops sometimes lean on a gas oven instead of charcoal, which costs the crust some of its smoke.
On the Palate
Where Jinyun Sesame Cake sits in the Chinese flavor cloud
Ingredients
Serves 4How it's made
6 steps · 2 hours 30 min
- 1120 min
Mix flour with water and a little leaven into a soft dough and let it rise until light, about two hours.
- 215 min
Make the filling by mixing minced fatty pork with soaked, chopped preserved mustard greens and seasoning.
- 310 min
Divide the dough, flatten each piece, wrap a generous spoon of filling inside, and seal into a ball.
- 45 min
Press and pull the ball into a thin round, brush the top with malt sugar dissolved in water, and scatter sesame seeds over.
Watch outBrush the malt-sugar water on evenly and press the sesame in — a bare or dry patch won't brown to amber or hold its seeds.
- 52 min
Slap the cake sesame-side onto the searing inner wall of a hot charcoal barrel oven.
- 65 min
Bake for a few minutes until the crust blisters and turns crisp and amber, then lift it off the wall and eat hot.
Watch outWatch for the surface to blister and glaze deep amber — that's the crust set; pull it before the edges char on the searing wall.
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