Chocolate Pie

Directions

1. 1
   Combine sugar, cocoa, cornstarch and salt in saucepan. Gradually stir in milk, a little at a time.
2. 2
   Stir constantly until smooth.
3. 3
   When mixture begins to thicken, stir and cook for 2 minutes.
4. 4
   Remove from heat.
5. 5
   Stir a small amount of mixture into egg yolks.
6. 6
   Put egg yolks into chocolate mixture and continue stirring for 2 minutes.
7. 7
   Remove from heat and add margarine and vanilla flavoring.
8. 8
   Pour into pie shell and top with meringue or Cool Whip.