Chocolate Pie
["2 egg yolks (reserve whites)", "3 tsp. flour", "2 tsp. cocoa", "1 c. sugar", "1 c. milk", "1 tsp. vanilla"]
["Mix dry ingredients; add 1/4 cup milk and egg yolks.", "Beat until creamy.", "Add remaining ingredients.", "Cook on low heat until thick.", "Pour into baked pie shell."]
["egg yolks", "flour", "cocoa", "sugar", "milk", "vanilla"]