We always keep a stash of the stuff in our freezer, and recommend you do too. Luckily, buying frozen or store-bought is a cinch and works just as well. It's a real game-changer in the kitchen, but making it from scratch is a rather involved process, including lots of butter and lots of dough folding. Sounds awesome, right? Puff pastry dough makes it all possible. Think of the flaky layers in a croissant, then imagine them in everything from appetizers to desserts.