Heralded by many sources as one of the best pies in America, this Brooklyn pie shop is a must try - on Pi Day, the day after, or, you know, every day. Their current winter pie menu includes a variety of custard pies, fruit pies, and chocolate pies, with flavors such as matcha custard, salty honey, chocolate julep, and sweet potato apple crumble. Pre-order a full pie ahead for $40 and surprise 8-10 of your friends or coworkers in the best way possible this Pi Day.