Chocolate Pie

Directions

1. 1
   In saucepan, mix together sugar, flour and salt.
2. 2
   Gradually add milk, then chipped chocolate.
3. 3
   Cook in double boiler, stirring constantly until thick.
4. 4
   Put a little of chocolate mixture into beaten yolks.
5. 5
   Then pour into hot mixture and cook two minutes longer, stirring constantly.
6. 6
   Add butter and vanilla.
7. 7
   Cool slightly.
8. 8
   Pour into cold pie crust.
9. 9
   Chill in refrigerator. Decorate with Cool Whip.