The document discusses the key components of a pie - the crust, filling, and topping. It emphasizes that a good pie crust is essential and depends on using the proper ingredients and technique. A quality crust remains crisp yet sturdy, and is achieved through understanding the roles that flour, shortening, water, and salt play in the dough. The flour provides structure, shortening gives flakiness, water produces gluten for texture, and salt conditions the gluten. Proper proportions and keeping ingredients cold are also important to make a good pie crust.