Chocolate Cream Pie - cooking recipe

Ingredients

1 c. sugar
2 c. milk
3 egg yolks
3 Tbsp. flour
3 level Tbsp. cocoa
dash of salt
1 tsp. vanilla
2 Tbsp. butter or margarine

Preparation

Combine all ingredients, except vanilla and butter or margarine.
Beat until smooth (I use blender).
Cook in double boiler until thick.
When thick, remove from stove and add vanilla and butter or margarine.