1 9” graham cracker crust
2 eggs, separated
½ c. lime juice
¼ t. cream of tartar
1 15 oz. can sweetened condensed milk
4 T. sugar

Gradually stir milk into lime juice.  Add egg yolks and stir until well blended.  Beat egg whites with cream of tartar and sugar and gently fold into lime mixture.  Pour filling into pie shell and freeze until firm.  Serve frozen topped with whipped cream.