Chocolate Pie
["1 c. sugar", "4 Tbsp. (level) cocoa", "6 Tbsp. flour", "4 egg yolks", "3 c. milk", "3 Tbsp. butter"]
["After measuring, sift sugar, cocoa and flour into double boiler.", "Beat egg yolks in small bowl with fork.", "Add eggs and milk to cocoa mixture.", "Add butter.", "Cook, stirring, until very thick.", "Pour into cooled baked pie shell."]
["sugar", "cocoa", "flour", "egg yolks", "milk", "butter"]