Chocolate Sandwiches(Cookies)  
["1/2 c. butter or margarine", "1 egg", "1 c. milk (all-purpose)", "2 c. flour", "1 1/2 tsp. soda", "1/2 tsp. baking powder", "1/2 tsp. salt", "1 c. sugar", "1 tsp. vanilla", "1/2 c. cocoa"]
["Mix together. Drop by tablespoons onto greased baking sheet. Bake at 400\u00b0 for 8 to 10 minutes."]
["butter", "egg", "milk", "flour", "soda", "baking powder", "salt", "sugar", "vanilla", "cocoa"]