Chocolate Pie
["2 Tbsp. cocoa", "2 eggs, yolk only (save whites for icing)", "1 small c. sugar", "pinch of salt", "1 Tbsp. butter", "2 Tbsp. flour or cornstarch", "1 c. milk or water", "1 Tbsp. vanilla"]
["Mix all together and cook until thick; pour into baked pie shell."]
["cocoa", "eggs", "sugar", "salt", "butter", "flour", "milk", "vanilla"]