Whoopy Pies
["2 c. plain flour", "1 tsp. baking soda", "1/4 tsp. salt", "1/3 c. cocoa powder", "1 c. granulated sugar", "1 egg", "1/3 c. cooking oil", "1 tsp. vanilla", "3/4 c. milk", "1 stick butter", "1 c. confectioners sugar", "3 Tbsp. Marshmallow Fluff", "1 tsp. vanilla"]
["Mix together flour, soda, salt, cocoa powder and sugar.", "Add egg, oil, vanilla and milk. Beat all together and drop by tablespoon onto greased cookie sheet. Allow room for spreading. Bake 12 minutes in 350\u00b0 oven."]
["flour", "baking soda", "salt", "cocoa powder", "sugar", "egg", "cooking oil", "vanilla", "milk", "butter", "confectioners sugar", "Marshmallow Fluff", "vanilla"]