Key Lime Pie - cooking recipe

Ingredients

6 Tbsp. sugar
1 can condensed milk
4 egg yolks (keep egg whites, but separate 1 from other 3)
1/2 c. lime juice
1/2 tsp. cream of tartar

Preparation

Lime Mix:
Mix condensed milk with 4 egg yolks and 1/2 cup lime juice.
Beat 1 egg white stiff.
Fold into mixture.