A pie crust is a delicious outer layer that holds the filling of a pie. It is typically made from a mixture of flour, butter, salt, and water. The dough is rolled out and shaped to fit a pie dish, creating a base for sweet or savory fillings. A well-made pie crust is flaky and tender, providing a perfect contrast to the filling inside. There are two main types of pie crust: shortcrust pastry and flaky pastry. Shortcrust pastry is often used for sweet pies like apple pie or cherry pie, while flaky pastry is great for savory dishes like quiche. Each type adds its own unique texture and flavor to the pie.