what is the rolled pastry
Puff pastry. The light, flaky, buttery stuff of apple turnovers, beef Wellington, and, of course, the most epic waffles you'll ever eat. It all starts with an unleavened dough of flour, water, salt, and butter, which is rolled out and spread with fat (usually more butter). It's folded, or laminated in baker's speak, until the paper-thin layers number in the hundredsâhence the classic French mille-feuille, or one-thousand sheets. Yup.