In this video, you'll see how to make puff pastry shells. They're an elegant container for sweet and savory fillings (such as Chef John's Lobster Newberg), and surprisingly easy to make. They only require 3 ingredients! Watch the video, then get the recipe for Chef John's Puff Pastry Shells. The key is making sure your puff pastry dough is very firm, and very cold, preferably still partially frozen, before you start cutting it.