Nan'S Chocolate Pie

Directions

1. 1
   In saucepan, combine sugar, flour and salt.
2. 2
   Gradually add milk and chocolate.
3. 3
   Cook and stir over medium heat until thick and bubbly, 2 minutes.
4. 4
   Remove from heat.
5. 5
   Stir small amount of chocolate mixture into eggs.
6. 6
   Add to saucepan of chocolate. Return to heat; cook for 2 minutes.
7. 7
   Remove from heat; add butter and vanilla.
8. 8
   Pour into cooked pie shell.
9. 9
   Top with whipped cream.