Grandma'S Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
2 egg yolks (save whites)
2 heaping Tbsp. flour
2 heaping Tbsp. cocoa
1 c. milk
1 tsp. vanilla
1/4 c. margarine

Preparation

Beat yolks and milk.
Add to dry ingredients.
Beat lumps out. Cook until thick.
Cool.
Put in already cooked/cooled pie shells. Beat egg whites and spread on top. Brown in oven.