Chocolate Pie - cooking recipe

Ingredients

1 c. sugar
1/4 c. flour
4 Tbsp. cocoa
1/4 tsp. salt
2 c. milk
3 egg yolks
2 Tbsp. butter
2 tsp. vanilla

Preparation

Mix sugar, flour, cocoa and salt well; sift if necessary. Add milk (use some canned milk).
Stir well and cook until thick; stir constantly.
Beat 3 (or 4 if small) egg yolks in small bowl. Add some of the hot liquid, then stir this into the pie filling and cook about 2 more minutes.
Add butter and vanilla.
Blend well.
Pour into baked pie crust.