Whoopie Pies
["4 c. flour", "1 c. cocoa", "2 tsp. salt", "2 c. sugar", "1 c. Crisco", "1 c. sour milk", "2 tsp. soda", "2 eggs, plus 2 yolks (whites used in filling)", "1 c. hot water"]
["Cream Crisco, sugar and eggs; beat.", "Stir in flour, cocoa and salt together.", "Add alternately with milk.", "Add water and soda, which has been mixed together.", "Drop by spoonfuls onto cookie sheet.", "Bake at 400\u00b0 for about 8 minutes."]
["flour", "cocoa", "salt", "sugar", "Crisco", "sour milk", "soda", "eggs", "water"]