A top-tier dish of Henan cuisine from Kaifeng, and one of the few dishes built from two separate preparations served as one. First a live Yellow River carp is scored, deep-fried, and finished in a clear, glossy sweet-and-sour glaze by the 软熘 method (gentle slip-cooking in sauce rather than a hard stir-fry). Then a mound of 龙须焙面 — gossamer hand-pulled noodles, drawn out as fine as beard-hairs and fried crisp — is laid over the fish at the table so it soaks up the sauce. Diners eat the fish first, then the sauce-soaked noodles, by the local saying 'first the dragon's flesh, then its whiskers' (先食龙肉，后食龙须). It is the traditional headline dish of Kaifeng's century-old 又一新 restaurant. It is distinct from the Shandong 糖醋黄河鲤鱼, which is the sweet-and-sour carp alone, without the noodles.
The dish joins two much older Kaifeng preparations. Sweet-and-sour braised carp is the elder: 《东京梦华录》, Meng Yuanlao's record of Northern Song Kaifeng (then 东京/Bianliang), notes sweet-and-sour fish among the city's market foods, and the Yellow River carp it uses was long prized — the 《诗经》 line 'must it be a fish? then it must be carp of the He' is the old proverb of that taste. The crisp noodle is the younger element: the Ming-era Kaifeng memoir 《如梦录》 records 龙须面 eaten on the second day of the second lunar month (龙抬头, 'the dragon raises its head'); the noodles were first boiled, and only later pulled fine and fried crisp, which is why they are called 焙面. In 1901 (光绪二十七年), as Empress Dowager Cixi and the Guangxu Emperor passed through Kaifeng on their return to Beijing, the prefecture had Changyuan (长垣) master cooks prepare the sweet-and-sour carp; Guangxu is said to have called it 'a fine dish of the ancient capital' and Cixi to have lingered after the meal. The two dishes were combined later — it was around 1930 that Changyuan cooks first laid the fried 龙须面 over the finished carp, creating 糖醋软熘鲤鱼焙面 as it is known now. The exact cook who first did so is not recorded. Today it ranks at the head of Henan's ten famous dishes, and the 又一新 restaurant's version is on Henan's provincial intangible-cultural-heritage list (first batch, 2007).
The carp arrives whole under a tangle of pale crisp threads. The fish flesh, slip-cooked in sauce rather than fried hard, stays soft and just-set, peeling off the bone in clean flakes; the skin where it was scored is faintly chewy. The glaze is a clear amber sweet-and-sour, glossy and not gloppy, balanced so neither the sugar nor the vinegar wins, clinging in a thin coat rather than a thick puddle. The 焙面 is the contrast: dropped onto the hot fish, the topmost strands stay shattering-crisp for a moment while the strands beneath drink up the sauce and turn tender, so one mouthful gives both a crackle and a soaked sweet-sour softness. Done well, the fish is moist and the sauce mirror-bright; done badly, the carp is dried out and muddy-tasting, the glaze is dull and pasty, or the noodles have been fried heavy and greasy instead of feather-light.
Three techniques carry the dish. The carp is scored deep on both sides (the 牡丹/flower cut) so heat and sauce reach the thick muscle and it cooks evenly; a first deep-fry sets the shape and firms the surface. Then comes 软熘 — instead of frying the fish hard in the wok, the cook returns it to a pan of sweet-and-sour sauce and slip-cooks it gently, ladling sauce over until it just glazes, which keeps the flesh tender where a hard stir-fry would dry it. The sauce itself is cooked by the Kaifeng 活汁 method: sugar, vinegar and a little broth are driven over high heat with constant stirring until the bubbling sauce climbs into a fine churning foam ('live sauce'), the point at which it is glossiest and clings in a thin even coat. The 焙面 is a pulled-noodle craft: a soft dough is repeatedly folded and drawn out (拉抻) until one rope becomes thousands of beard-fine strands, which are then fried — light and quick — to a dry crispness. Laid on the hot fish at the last moment, the top strands stay crisp while the rest act like a sponge for the sauce, the contrast lost if they are added too early.
Variations
The nearest sibling is the Shandong 糖醋黄河鲤鱼, essentially the same sweet-and-sour Yellow River carp but served without the crisp noodle topping, often with a redder, sharper glaze and the fish bent into an arched 'leaping carp' shape. Within Henan the carp half also appears alone as 糖醋软熘鱼 / 糖醋熘鱼. The 焙面 likewise has a life of its own as 龙须焙面, eaten as a crisp snack. Cooks differ on the noodle: the older way pulls true hand-drawn 龙须面, while some shortcut it with shredded wonton wrappers; and the sauce ranges from a lighter, clearer balance to a heavier, sweeter one. The dish is most associated with Kaifeng's 又一新 restaurant, where it is the signature.
On the Palate
Where Sweet-and-Sour Yellow River Carp with Crispy Fried Noodles sits in the Chinese flavor cloud
Ingredients
Serves 4
How it's made
7 steps · 45 min active + 5 min waiting
- 112 min
Scale, gut, and clean a live Yellow River carp; score both sides deeply with a fine flower (牡丹) cut so the thick flesh will cook through, then pat dry and dust very lightly with starch.
Watch outScore both sides deep with the flower cut so heat and sauce reach the thick muscle and it cooks evenly.
- 26 min
Heat oil to about 70% hot (六七成热) and deep-fry the carp until the surface is set and lightly colored and the shape holds, then lift it out and drain.
- 315 min
Separately make the noodle dough soft, rest it, then repeatedly fold and pull it (拉抻) into thousands of beard-fine 龙须 strands; fry them quickly in moderate oil until dry and crisp, and drain on paper.
- 44 min
In a clean pan combine sugar, rice vinegar, a little light soy and broth; drive it over high heat, stirring constantly, until it bubbles up into a fine churning foam — the 活汁 (live sauce) stage.
Watch outDrive the sauce over high heat, stirring, until it churns into a fine bubbling foam — that's the Kaifeng 'live sauce' stage.
- 55 min
Return the fried carp to the sauce and slip-cook it gently (软熘), ladling the sauce over and basting until the fish is just glazed in a thin even coat; lift it whole onto a serving plate.
Watch outSlip-cook the fried fish gently in the sauce, basting rather than stir-frying — hard frying here dries the tender flesh.
- 61 min
Pour the remaining glaze over the fish to coat, keeping it glossy and clear.
- 72 min
At the table, lay the mound of crisp 龙须焙面 over the hot fish so the lower strands soak up the sauce; eat the fish first, then the sauce-soaked noodles.
