Filo or phyllo is a very thin unleavened dough used for making pastries such as baklava and börek in Middle Eastern and Balkan cuisines. Filo-based pastries are made by layering many sheets of filo brushed with oil or butter; the pastry is then baked.  The name filo (phonetic) or phyllo (transliteration) comes from Greek φύλλο ‘leaf’. The origin of the practice…