For a take on this classic Icebox Key Lime Pie that didn't rely on raw egg yolks, we used a combination of instant vanilla pudding, gelatin, and cream cheese whipped together in the food processor with the usual lime juice and condensed milk to thicken our no-cook pie's filling to a perfect, smooth consistency. A full cup of fresh lime juice produced a pie with bracing lime flavor. Lime zest added another layer of flavor, and processing the zest with a little sugar offset its sourness and eliminated the annoying chewy bits.