Marathon Key Lime Pie - cooking recipe

Ingredients

4 to 5 egg yolks, beaten (depending on egg size)
1 can sweetened condensed milk
1/2 c. Key lime juice or 3/4 c. regular lime juice
2 large spoonfuls Cool Whip
1 graham cracker crust pie shell

Preparation

To beaten egg yolks, add condensed milk, lime juice and Cool Whip.
Blend well.
Pour into prepared pie shell.
Chill 2 to 3 hours.
Garnish with additional Cool Whip if desired.