Filo 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.

Pastry is baked food made with a dough of flour, water, and shortening that may be savoury or sweetened. Sweetened pastries are often described as bakers' confectionery. The word "pastries" suggests many kinds of baked products made from ingredients such as flour, sugar, milk, butter, shortening, baking powder, and eggs. Small tarts and other sweet baked products are called pastries as a synecdoche. Common pastry dishes include pies, tarts, quiches, croissants, and pasties.