Choux pastry is a cooked dough central to creating classic pastries like éclairs and cream puffs. Its unique characteristic lies in its ability to generate steam during baking. This steam causes the pastry to puff up, resulting in a hollow interior – a defining feature of these treats. The process relies on a specific dough composition and baking technique to achieve the desired rise and texture. Understanding how this dough works is key to successfully preparing these delicate pastries. The technique allows for a light and airy final product, distinct from other pastry types. Ultimately, mastering choux pastry unlocks the potential for creating a variety of impressive desserts.