Puff pastry is a laminated dough pastry. It is made by first mixing wheat flour and water and then adding solid fat (usually butter) inside this dough. The dough is folded multiple times and then baked in the oven : the layers created are leavened which give the puff pastry its unique airy texture.
It can be used to make different types of viennoiseries, but also as a base for tarts or quiches.?