Pastry dough is a type of dough used to make various baked goods, such as pies, tarts, and pastries. It is typically made from a mixture of flour, fat (like butter or shortening), and water. The fat is cut into the flour to create a crumbly texture, which helps the dough become flaky when baked. There are different types of pastry dough, including shortcrust, puff pastry, and choux pastry. Each type has its own unique preparation method and uses. For example, puff pastry involves folding layers of dough and fat to create a light, airy texture, while choux pastry is cooked on the stovetop before baking.