Key Lime Pie
["4 egg yolks", "1/2 c. lime juice (key lime if possible)", "1 can sweetened condensed milk"]
["Preheat oven to 250\u00b0.", "Beat egg yolks; add condensed milk and lime juice and beat until thick.", "Pour into baked pie shell."]
["egg yolks", "lime juice", "condensed milk"]