Chocolate Pie - cooking recipe

Ingredients

1 cooked pie shell (9 inch)
1 c. sugar
1/2 c. flour
4 Tbsp. cocoa
2 egg yolks
2 c. cold milk
2 Tbsp. butter
1 tsp. vanilla

Preparation

Mix sugar, flour, cocoa, egg yolks and milk.
Cook on top of stove until thick. Stir constantly.
Remove from heat.
Add butter and vanilla.
Pour into pie shell.
Cover with meringue.