Marinated in spiced yoghurt, Kashmiri chillies, and garlic, then roasted over roaring tandoor charcoal embers with charred edges.
Parboil the baby potatoes, peel, and prick all over with a fork.
Coat in yogurt mixed with ginger-garlic paste, Kashmiri chili powder, tandoori masala, toasted gram flour, mustard oil, and salt; rest 1 hour.
Thread the potatoes onto skewers.
Grill over high heat, turning, until the skins blister and char.
Sprinkle with chaat masala and serve with mint chutney.