Flaky pastry, also known as blitz pastry or rough puff, is a light and flaky unleavened pastry that is similar to, but distinct from, puff pastry. Flaky pastry relies on large lumps of shortening (approximately 1-in./2½ cm. across) mixed into the dough, as opposed to the large rectangle of shortening in puff pastry. Flaky pastry dough is then rolled and folded in a manner similar to puff pastry.