Tandoori Roti is whole wheat flatbread baked against the wall of a tandoor until it blisters and chars. It is not a sandwich; it is the bread, and on this catalog it earns a page because so many fillings and wraps depend on it. The angle is the oven. The same dough cooked on a tawa is a plain roti; slapped into a clay tandoor it becomes something sturdier, drier, and faintly smoky, built to scoop and to hold up under heavy gravies.
The make is direct. Whole wheat flour (atta), water, a little salt, sometimes a touch of oil or yogurt, kneaded into a stiffer dough than a soft roti and rested. A ball is flattened, stretched by hand into a thick disc, dampened on one face, and pressed firmly against the inside wall of the hot tandoor so it sticks. It bakes in under a minute, puffing in patches and taking on the dark leopard spotting the oven gives it, then is hooked off and usually brushed with butter or ghee. Good execution is a roti that is cooked through but still pliable, with crisp charred bubbles and a soft interior, a clean wheat smell, and enough structure to tear a piece and pinch up gravy without disintegrating. Sloppy execution shows as a roti that is dense and leathery from over-rolling, pale and doughy from a cool oven, or so dried out and brittle it cracks instead of folding. Burnt to bitterness on the char side is the other common miss.
Variations are mostly about richness and grain. Brushing with extra ghee or studding with crushed garlic and coriander pushes it toward the butter and garlic naan register without the leavening. Multigrain or bran-heavy versions trade softness for a coarser, nuttier chew. As a carrier it does steady work: torn around dal and rich North Indian gravies, rolled into a quick roti wrap with leftover sabzi, or used in place of softer breads when the meal needs something that will not go limp under sauce. The closely related leavened tandoor breads, naan and kulcha, run on yeast or yogurt and a softer crumb, and that family deserves its own article rather than being crowded in here. Judge a tandoori roti on the same two points every time: real char from a real oven, and a body that bends without tearing or turning to cardboard.