Chocolate Pie - cooking recipe

Ingredients

2 c. sugar
3 Tbsp. flour
3 Tbsp. cocoa
2 3/4 c. milk
4 eggs, separated
2 Tbsp. butter
1 Tbsp. vanilla
4 Tbsp. sugar

Preparation

Mix the ingredients thoroughly, except for the egg whites and 4 tablespoons sugar; cook at medium heat until it thickens.
Cool and pour into baked pie shell.