1 c. sugar
5 tbsp. flour
1/2 stick butter
2 c. milk
4 tbsp. cocoa
2 egg yolks
1 tsp. vanilla
Dash salt

Mix flour, sugar and cocoa; mix well. Add milk; cook over medium heat until warm. Add egg yolks to small amount of warm mixture, mixing well. Add to mixture. Add butter and vanilla; cook until thickened. Pour into a cooked pie shell.