Marinated in spiced yoghurt, Kashmiri chillies, and garlic, then roasted over roaring tandoor charcoal embers with charred edges.
Mix the paneer with the yogurt, half the ginger-garlic paste, half the chili powder and half the garam masala; rest 30 minutes.
Pan-grill the paneer cubes in 1 tbsp butter until the edges char lightly.
Heat the remaining butter, sauté the onion and remaining ginger-garlic paste, then add the tomato puree and cook until the butter separates.
Add 1/2 cup water and the charred paneer with its juices and simmer 5 minutes.
Stir in the cream and remaining spices and serve with naan.