Bekang Rawt, Fermented Soybean Salad

Before the refrigerator, every mountain cuisine solved winter its own way, and the peoples of the Chin hills solved part of it with the soybean: cooked, wrapped, and left to ferment until it grows sticky, pungent, and nearly immortal. Bekang um — the Mizo name that made it into print, for a food shared across the Chin-Mizo highlands — belongs to the great trans-Himalayan belt of fermented beans that runs from Japanese natto through Naga axone to the tua nao of the Shan hills. Same microbe, same logic: protein that keeps, flavor that announces itself.

Bekang rawt is its simplest and most common table form — the beans lightly pounded with charred dried chili, raw shallot, green chili, and salt into a sticky, ferocious little salad that seasons a mountain of rice. It should be said plainly: this is oral-tradition food. You will not find it in colonial gazetteers, which recorded what Chin households smoked and drank but rarely what fermented quietly in the corner; the written record is modern, the practice unquestionably far older.

The craft is all in restraint. Warm the beans so the ferment opens up, char the chilies properly, and pound just enough to bruise — the beans' own stickiness is the dressing, and over-pounding turns a lively salad into paste. Serve it in a small bowl and let everyone take a spoonful at a time. Like all great ferments it is a condiment that thinks it is a dish, and after a week of eating it with rice you will take its side.