Chocolate Cream Pie

Directions

1. 1
   In large heavy saucepan, mix sugar, cornstarch, salt and cocoa. Gradually stir in milk until smooth.
2. 2
   Stir over medium to medium-low heat until mixture thickens and comes to a boil. Gradually blend a little chocolate mixture into yolks; add to remaining chocolate mixture.
3. 3
   Stir over very low heat 2 to 3 minutes longer or until slightly thicker.
4. 4
   Remove from heat.
5. 5
   Stir in butter and vanilla.
6. 6
   Pour into pie shell.