First thing to remember is that a firm dough is your best friend. Think of it like a tight rope: if it's too slack, the puri will soak up oil and lose that coveted fluff. Start by mixing salt with just enough water—about a third to a half cup for every cup of whole‑wheat flour—and then fold in the flour slowly until the mixture is smooth and springy.
The secret sauce is a splash of semolina—two tablespoons per cup of flour. Semolina adds a subtle crunch that keeps the puri crisp on the outside yet soft inside. Knead the dough until it's firm yet supple; you want it to hold its shape when you roll and fry.
Roll each dough ball into a circle that’s neither too thin nor too thick—think a lemon‑size ball flattened to about a quarter inch. Lightly grease the dough with a whisper of oil or a dab of ghee before rolling; this keeps the surface from drying out and prevents sticking in the pan.
Heat the oil to a steady medium—no more, no less. If the oil is too hot, the puri will burn on the outside before the inside cooks; too cool and it will drown in oil. Keep an eye on the heat, and adjust the flame if the surface starts to bubble too quickly.
Drop a puri into the hot oil and press it gently with a slotted spoon for a second or two. This helps the puri puff up like a balloon. Flip it once the underside is golden, then remove it; a second flip only adds oil.
Finish with a few quick tricks: use fresh dough, avoid dusting with flour, and fry one or two at a time to keep the oil temperature steady. A small saucepan and refined sunflower oil should do the trick. Try adding a pinch of cardamom to the dough for a fragrant twist—your taste buds will thank you.