Granny Carnala'S Chocolate Pie
["3 egg yolks (use whites for meringue)", "2 Tbsp. margarine", "3 Tbsp. cocoa", "2 1/2 Tbsp. cornstarch", "1 c. sugar", "1 1/2 c. milk"]
["Bring milk to a boil.", "Mix all dry ingredients.", "Cook in double boiler until thickens.", "Pour into pie shell.", "Beat egg whites for meringue."]
["egg yolks", "margarine", "cocoa", "cornstarch", "sugar", "milk"]