Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
3 Tbsp. cocoa
3 Tbsp. flour
3 eggs, separated
2 c. sweet milk
1 tsp. vanilla
3 Tbsp. butter

Preparation

Mix first 3 ingredients.
Stir in milk.
Add egg yolks and butter.
Cook until thick.
Pour into baked pie crust (add vanilla before you put in crust).
Top with egg whites, beaten until stiff.