A single crust pie refers to a pie with only a crust on the bottom. In a double crust, you get tender, spiced fruit enveloped in a flakey crust on the top and bottom. This means each bite has that perfect apple to crust ratio you’ve been searching for your whole life. Visually, a double-crust makes for the ideal apple pie. The design of the top crust can involve a classic overlay, lattice, or decorated with pastry cutouts.