A pastry crust is a type of dough used as a base or covering for various baked goods, such as pies and tarts. It is typically made from flour, fat (like butter or shortening), and water. The fat is cut into the flour to create a crumbly texture, while the water helps bind the ingredients together. There are different types of pastry crusts, including shortcrust, puff pastry, and phyllo. Each type has its own unique texture and uses. For example, shortcrust is often used for sweet pies, while puff pastry is known for its flaky layers, making it ideal for savory dishes.