Dal Kachori is a North Indian fried pastry built around a spiced lentil filling. A round of stiff dough is sealed around a dry, fragrant dal mixture and deep-fried until it puffs into a crisp, hollow-shelled ball. The angle is the contrast between a shatteringly flaky crust and a savory, gritty interior that carries most of the spice, eaten as a snack rather than a meal and held in the hand like a small filled bread.
The build hinges on the filling and the fry. The dal, usually a soaked and coarsely ground lentil such as moong or urad, is cooked down dry with asafoetida, cumin, fennel, ginger, and chili until it is a crumbly, aromatic paste with no moisture left, since any wetness will make the kachori soggy or split it in the oil. A small disc of flour-and-ghee dough is filled with this mixture, pinched closed, and gently flattened, then fried slowly in moderately hot oil so the shell puffs away from the filling and turns rigid and pale-gold rather than browning fast. Good dal kachori has a crust that audibly cracks and a hollow gap between shell and filling, with the dal well spiced and dry. Sloppy versions are fried too hot so the outside colors before the inside cooks, leaving a doughy band under the shell, or use an underspiced, damp filling that steams the pastry soft.
It is normally eaten with a sweet tamarind chutney and a sharp green one, sometimes broken open and topped with yogurt and spices into a fuller plate. Variation runs through the spicing and the lentil chosen, and the same technique covers a wider family of stuffed fried breads with different fillings, of which this is the lentil version; it descends from the broader kachori. The pea-stuffed matar kachori is a close relative with its own character and deserves its own article rather than being crowded in here. At its core, dal kachori is about getting a dry, spiced lentil mass sealed inside dough that fries crisp and hollow.