Preheat oven to 350 degrees.
Mix milk, lime rind, lime juice, salt, and egg yolks together over low heat in saucepan. Stir until thickened. Pour into a baked crust.
In a mixer bowl, combine egg whites and sugar and beat, using the whisk beater, until stiff peaks form. Cover pie with meringue making sure you seal meringue to pie crust edges. Bake for 10 to 15 minutes in preheated oven, until meringue is lightly browned. Let cool completely and chill for 3 hours before serving. Makes l pie. Enjoy!