Aunt Irene'S Chocolate Pie - cooking recipe

Ingredients

3 egg yolks
1 2/3 c milk
5 Tbsp cocoa
2 Tbsp cornstarch
1 1/4 c sugar
1 tsp vanilla
1 tsp butter
1 baked pie shell (9 inches)
Meringue recipe below*

Preparation

Beat egg yolks and part of the milk in a saucepan. Then add sugar mixed with cocoa and cornstarch. Stir the mixture very well. Add remaining milk, vanilla and butter and mix well. Cook until thickened. Pour chocolate mixture into a baked pie shell. Cover with meringue if desired.