Squeeze juice from 4 lg or 6 small Key Limes and grate rind; set aside. Using a whisk beat egg yolks until
buttercup yellow. Add about half the condensed milk, using whisk. Blend well and add remaining milk. Add
half the lime juice and blend slowly. Add remaining juice and blend. Add grated rind; mix and pour into
chilled pie crust.
Refrigerate 4 hours. May be frozen. To serve, slice while still frozen and let stand about 10 minutes. Top
with whipped cream.