Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
1/3 c. flour
1/3 c. cocoa
3 egg yolks
2 c. milk
1 tsp. vanilla
1/4 stick margarine
1 pie crust, cooked

Preparation

Mix the sugar, flour and cocoa; set aside.
Beat egg yolks and add milk.
Gradually add to first mixture, mixing thoroughly. Cook over medium heat, stirring constantly (or use double boiler) until mixture thickens.
Pour into cooked crust.
Top with meringue or Cool Whip.