A vol-au-vent is a light, flaky pastry shell made from puff pastry. It is typically round and hollow, allowing it to be filled with various savory or sweet fillings. The pastry is created by layering dough and butter, which is then rolled and folded multiple times to create its characteristic airy texture. These delightful pastries are often served as appetizers or main dishes in French cuisine. Common fillings include creamy chicken, mushrooms, or seafood, but they can also be filled with sweet ingredients like fruit or custard. Vol-au-vents are popular for their versatility and elegant presentation.