Bhatura is the large, puffy, deep-fried bread of North India, made from a fermented dough and built to be eaten with chole, the spiced chickpea curry. As bread in a sandwich sense, it is the dramatic, balloon-like half of a pairing whose entire identity is the contrast between a hot, airy fried shell and a heavy, tangy stew. It is leavened by fermentation, which is what separates it from a flat fried disc: the dough is alive going into the oil, and that is why it inflates rather than just crisping.
The build hinges on the dough and the fry. A wheat-based dough is mixed and left to ferment, traditionally with a souring or leavening agent, until it slackens and develops a faint tang. It is rolled into a large oval or round and slid into hot oil, where it has to be basted and turned quickly so it puffs into a hollow, golden balloon rather than sitting flat. Good execution gives you a bhatura that balloons fully, with a thin crisp skin, a soft chewy interior, and a clean fried flavor that does not taste of stale oil. Sloppy execution is dough rolled too thick so it fries dense and bready, oil run too cool so it absorbs fat and goes heavy and pale, or a piece that refuses to puff because the dough was overworked or under-fermented. It is served hot and torn by hand, each piece used to scoop chole, the soft fried bread soaking up the chickpea gravy as you go.
Variation is mostly in the dough and the scale. Some kitchens enrich it for a softer, more tender pull; others keep it leaner so the puff is crisper and the tang more pronounced; sizes range from modest to enormous showpiece bhature that arrive standing tall before they deflate. The dish it is built around, the chole bhature plate that pairs this bread with the chickpea curry as a single famous meal, deserves its own article rather than being crowded in here, as does the broader world of Indian fried breads. What defines bhatura on its own is the fermentation and the puff: it is a bread engineered to be light and hollow against something rich and dense, and it works only when it is served straight from the oil, before the balloon collapses and the magic with it.