Cylinders of Chinese yam and date paste packed with candied green plum, walnut, and melon seeds, wrapped in thin plain dough, deep-fried until golden, and immediately coated in a shatteringly crisp caramel shell—one of Beijing's Thirteen Classic Snacks, prized for both its festive sweetness and its reputed health benefits.
糖卷果 is counted among the 老北京十三绝, the ceremonial roster of the most representative Beijing snacks historically associated with the guild vendors of Huguo Temple and Longfu Temple fairs. Its main ingredients—mountain yam and jujubes—hold dual standing in Chinese culinary and medicinal tradition: yam tonifies the spleen and kidney; jujubes nourish blood and qi. This identity as both a festive treat and a health food accounts for its particular popularity with women and elderly diners. No specific founding date or named creator is documented in available sources; the dish is presumed to have been part of Beijing temple-fair culture for several centuries, and its technique of coating fried snacks in hard-crack caramel is shared with other classical Beijing confections.
The caramel shell cracks with an audible snap under the teeth, releasing a puff of warm steam with nutty sweetness; inside, soft yam and chewy date are laced with fragments of tart plum and crunchy walnut.
Mountain yam (Dioscorea polystachya) is rich in mucilaginous glycoprotein alongside starch (approximately 16g per 100g fresh weight), giving the mashed paste a naturally adhesive quality that binds the fruit and nut filling without eggs or gelatin. Deep frying at 180°C triggers Maillard browning on the thin dough wrapper while steam pressure from the yam-date filling keeps the interior moist and prevents the shell from collapsing. Rolling the hot fritter immediately in sugar syrup cooked to the hard-crack stage (155–165°C) allows the syrup to spread thinly across the surface; as it cools rapidly, sucrose molecules lack time to recrystallize in large formations and instead vitrify into an amorphous glassy shell that shatters cleanly on biting.
Variations
Some versions omit the dough wrapper and deep-fry the shaped yam-date cylinders directly; a steamed (non-fried) variant exists for those who avoid oil; the caramel coating can be replaced with a sesame-seed crust for a less sweet, nuttier finish.
On the Palate
Where Sweet Fried Mountain Yam Rolls sits in the Chinese flavor cloud
Ingredients
Serves 4
How it's made
8 steps · 30 min
- 120 min
Peel and cut 300g Chinese mountain yam into chunks; steam over high heat for 20 minutes until completely tender, then mash to a smooth paste while still warm.
- 210 min
Pit 150g jujubes, steam for 5 minutes to soften, then press through a sieve to form a smooth date paste; fold into the yam paste and mix well.
- 35 min
Fold in 30g finely chopped candied green plum, 30g roughly crushed walnuts, and 20g melon seeds; mix until evenly combined.
- 45 min
Shape the filling into finger-length cylinders about 2cm in diameter; set aside.
- 510 min
Mix 100g flour with a pinch of salt and approximately 55ml water to form a smooth dough; roll out into thin sheets and wrap each filling cylinder, pressing firmly to seal.
- 65 min
Heat 500ml peanut oil in a wok to 180°C; fry the rolls in batches for 3–4 minutes, turning gently, until deep golden. Drain on paper towels.
Watch outFry the rolls to a deep even gold, turning gently — the steam inside keeps them puffed, so pull them before the wrapper darkens or splits.
- 75 min
In a clean pan, dissolve 120g sugar in 40ml water and cook over medium-high heat to the hard-crack stage (155–165°C, syrup sets firm and glassy when dripped into cold water); quickly drop in the hot fritters and turn to coat evenly.
Watch outThe syrup is ready at the hard-crack stage — a drop flicked into cold water sets into a hard, glassy ball that snaps; too early and the shell stays sticky.
- 83 min
Transfer to a lightly oiled plate, separate individual rolls before the sugar sets, and serve once the caramel shell has hardened (about 2 minutes).
Watch outSeparate the rolls the moment they're coated, before the sugar sets — wait and they weld into one solid clump.
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