Hotan Walnut Halwa

Hotan sits on the southern Silk Road, and its walnuts — large, oily, sweet — are famous across Xinjiang. Hotan and Kashgar in southern Xinjiang are reckoned the home of this pressed walnut sweet, and its story is tied to the caravan trade: traders crossing the Taklamakan favored autumn and winter to avoid the summer heat, but winter offered few portable, long-keeping rations, so — by local lore — Uyghur merchants had Hotan physicians devise this confection. Walnuts (along with raisins, sesame, and almonds) are pounded into thick boiled grape syrup, pressed firm while hot between sheets, cooled, and cut into small squares — high-calorie, shelf-stable, instantly energizing, a slab enough to carry a traveler across the desert. Eaten with a sip of bitter green tea to cut the sweetness. It has been made in Hotan for centuries.

A slab of caramel-sticky candy dense with walnut chunks. Cut into rectangular pieces and sold at bazaars by weight. Sweet-bitter from the walnuts; the candy itself is barely caramelized — the walnuts carry it.

Walnut oil is unusually high in alpha-linolenic acid (the omega-3), which oxidizes rapidly — this is why walnut halwa goes rancid within weeks rather than months. The syrup acts as an oxygen barrier, slowing the oxidation; refrigeration extends shelf life further. The traditional binder is grape syrup, prized because its high viscosity grips many walnuts with little sugar, so the sweet stays nutty rather than cloying.