Chocolate Pie - cooking recipe

Ingredients

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

Preparation

Mix dry ingredients well.
Gradually add enough of the milk to make a paste.
Add well-beaten egg yolks.
Add remaining milk. Cook slowly, stirring constantly to prevent sticking, or cook over hot water in top of double boiler.
When thickened, remove from heat and add butter and vanilla.
Pour into baked pie shell and top with meringue.