Chocolate Pie Filling - cooking recipe

Ingredients

1 c. milk
5 Tbsp. sugar
1 Tbsp. butter
1/3 c. flour
2 Tbsp. cocoa
1/2 c. milk
1 egg yolk
1 tsp. vanilla

Preparation

Heat milk, sugar and butter.
Mix flour and cocoa together. Slowly add milk, egg yolk and vanilla to hot mixture.
Cook until thick, beating a little to smooth.
Pour into baked pie shell.