The Tandoori Paneer Sandwich takes the smoky, yogurt-marinated paneer that usually arrives skewered off a grill and folds it into bread instead. Its angle is borrowed intensity: the tikka marinade does almost all the flavor work, so a competent version is mostly a question of not wasting it. This is urban Indian café and street food, served cold or barely warm, the bread acting as a vehicle rather than a partner.
The build starts with the paneer. Cubes or thick slabs go into a marinade of thick yogurt, ginger-garlic paste, red chili, turmeric, garam masala, and a little oil, then onto a tawa, grill, or tandoor until the edges char and the surface dries to a tacky crust. Good execution means the paneer is firm and dry at the edges with a clear smoke note, the marinade clinging in a thin lacquer rather than sliding off. The bread, usually white sandwich slices, is buttered and lightly toasted so it holds up. Then a layer of sliced onion, cucumber or tomato, a sharp green chutney, and sometimes a swipe of ketchup or mint mayonnaise. Sloppy versions are the common failure: paneer poached pale in its own watery marinade with no char, soft spongy texture, and so much chutney and sauce that the bread turns to paste before the first bite. The other failure is under-seasoned paneer that tastes of nothing but warm cheese.
Variations track what is on hand. Some cooks press the assembled sandwich on a tawa or in a grill so it comes out hot and striped, which firms the paneer further and is the better move when the kitchen has the equipment. The grilled-and-buttered version edges toward the Bombay sandwich school of buttered, chutney-lined toast, and that grilled street style deserves its own article rather than being crowded in here. Add-ins range from a layer of spiced mashed potato for bulk, to grated cheese melted on top, to capsicum and onion cooked alongside the paneer for a more substantial filling. Across all of them the test is the same: you should taste smoke and spice first, paneer second, and the bread should be a quiet edge, not a soggy middle.