The Ultimate Key Lime Pie

This unusual pie was inspired by a version made by Fern Butters, who ran a small boardinghouse and dining room in the Florida Keys. According to David L. Sloan, a Key lime pie expert, President Truman used to travel to Key West just to enjoy Mrs. Butters' pie. The recipe contains vanilla ice cream, and is baked and then frozen. The end result is a pie with a soft and delicate filling reminiscent of Italian semifreddo. Most graham cracker pie shells are baked briefly before they're filled, but because this pie is frozen after it's baked, we recommend skipping the usual pre-bake for a tender, easily cuttable crust.

For more on Sloan and the story behind Key lime pie, see Molly O'Neill's feature, "The Curious Case of Key Lime Pie."