Kaifeng Stir-Fried Jelly

Kaifeng — the Northern Song capital of Bianliang — has eaten cold starch jelly for nearly a thousand years; the Song-era memoir Dongjing Meng Hua Lu records a "fine-strand liang fen" sold in the city. The stir-fried version is the local refinement: rather than dressing the jelly cold, Kaifeng vendors fry it on a flat griddle with bean paste until it sizzles, a dish now firmly identified with the city's night-market and breakfast streets. It remains street food first, plated fresh from the pan rather than served at banquets.

The pleasure is the contrast in a single cube: a crust where it met the hot pan, then a soft, almost jelly-wobble center that gives at once. Bean paste coats everything in a dark, savory gloss; garlic and scallion cut through with a green sharpness. It is slick and a little chewy, salty and warm, the kind of thing eaten standing up. Let it sit and the crust softens back into the jelly — it is meant to be eaten the second it leaves the pan.

Everything turns on the jelly and the heat. The starch jelly is firm-set so the cubes hold their shape and develop a skin when they hit the pan; too soft and they slump into paste. The wok or flat griddle is run hot and the cubes are left to sit before tossing, so a Maillard crust forms on the contact face before the inside warms through. Bean paste is fried first to bloom its fermented aroma in the oil, then the jelly is folded in and barely moved — over-stirring breaks the cubes and rubs off the crust. A final scatter of raw garlic and scallion goes in off the heat to stay pungent.