Patot diya masMustard fish in banana leaf
On Uruka, the night before Magh Bihu, young people build a bhelaghar hut and a tall mejî bonfire in the harvested fields and cook a feast outdoors, and parcels of fish in banana leaf tucked into the embers are part of it. Patot diya mas is the simplest of them: small river fish or firm steaks rubbed with raw mustard paste, green chilli, turmeric and a good splash of mustard oil, wrapped and roasted until the leaf blackens and the fish steams in its own juices. It is sharp, hot and fragrant, and goes with plain rice. Common mistake: grinding the mustard with hot water or for too long, which turns it bitter; grind it cold with a pinch of salt and a green chilli. Food safety: marinate the fish in the fridge, and cook until the flesh is opaque all the way through and flakes easily with a fork. Chef's tip: on a stove, a dry cast-iron pan with a lid gives the same smoky leaf flavour as the bonfire.



