FILLING:

3 egg yolks
1 (14 oz.) can sweetened condensed milk
1/2 c. fresh lime juice
1 tbsp. grated lime rind
1 c. heavy cream

Beat egg yolks until thick, about 4 minutes. Beat in condensed milk, lime juice and grated rind. Pour into cooked pie shell. Cover and refrigerate at least 4 hours. When ready to serve, beat heavy cream until stiff, do not sweeten. Spoon over pie.