Kanchemba belongs to the Thakali, the trading community of Thak Khola in Mustang, whose kitchens run on buckwheat rather than rice. Two buckwheat varieties grow in Nepal: mithe phapar, the common sweet sort raised everywhere from the Tarai to the high valleys, and tite phapar, the bitter tartary buckwheat that will only take at altitude and carries a distinct bitterness. In autumn the Mustang fields go over to buckwheat flower. The flour is cooked into a stiff dough first, then cut into fingers and fried, which gives an outside that shatters and a centre that stays soft and faintly sweet. It is eaten with timmur chhop, a dry rub of roasted Sichuan pepper, chilli and salt ground together, and the tingling is half the point of the dish.

INGREDIENTS
- 200 g buckwheat flour
- 250 ml water
- 1 tbsp ghee
- 1 tsp salt
- vegetable oil (for deep frying)
- 1 tsp Sichuan peppercorns
- 4 dried red chillies
- 3 garlic cloves
- ½ tsp salt (for the chhop)
METHOD
- Bring the water to a boil in a deep pan or karahi. Stir in the ghee and the salt.
- Scatter the buckwheat flour over the surface in stages, spreading it evenly rather than dumping it in one place.
- Drop the heat to its lowest setting and work the mixture hard with a wooden spatula for 4 to 5 minutes, pressing it against the side of the pan, until it comes together as a thick dough with no dry pockets.
- Take it off the heat and leave for 5 minutes, until it is warm rather than hot.
- Tip the dough onto a board, flatten it to about 1.5cm thick and cut it into fingers roughly the size of thick chips.
- Meanwhile make the timmur chhop. Toast the peppercorns and dried chillies in a dry pan for 30 seconds until they smell sharp, then grind them with the garlic and salt to a coarse rub.
- Heat the oil to 180C and fry the fingers in small batches for 3 to 4 minutes, until the outsides are crisp and dark gold.
- Drain on paper, dust generously with the timmur chhop and eat hot.