Key Lime Pie
["1 (14 oz.) can condensed milk", "4 egg yolks", "3 to 4 oz. Key West lime juice"]
["Pour into 9-inch graham cracker pie shell.", "Refrigerate overnight.", "If preferred, pie may be baked at 350\u00b0 for 8 minutes. Top with whipped cream or meringue."]
["condensed milk", "egg yolks", "lime juice"]