What is "filo pastry"?

Filo pastry, also known as phyllo pastry, is a thin and flaky pastry that is commonly used in Middle Eastern, Mediterranean, and Balkan cuisines. It is made from unleavened dough that is stretched and rolled into thin sheets, which are then layered with melted butter or oil. The pastry is typically used to make sweet and savory dishes, such as baklava, spanakopita, and samosas. Filo pastry is versatile and can be formed into a variety of shapes, including triangles, rolls, and cups. It is known for its delicate texture and crispy crunch when baked, and is often used to create dishes with a crispy crust.