Chocolate Pie

Directions

1. 1
   Mix sugar, cocoa and flour.
2. 2
   Add egg yolks and 1/2 cup of the milk, mix well, then add rest of milk.
3. 3
   Cook on medium heat until thick.
4. 4
   Remove from heat, add vanilla and butter.
5. 5
   Beat with mixer until smooth.
6. 6
   Pour into baked 9-inch pie shell.