Chocolate Marshmallow Cookies
["1/2 c. butter, softened", "1 c. sugar", "1 egg", "1/4 c. milk", "1 tsp. vanilla", "1 3/4 c. flour", "1/3 c. cocoa", "1/2 tsp. baking soda", "1/2 tsp. salt", "16 to 18 large marshmallows"]
["Cream butter and sugar.", "Add egg, milk and vanilla; mix well. Combine flour, cocoa, baking soda and salt.", "Beat into creamed mixture.", "Drop by rounded teaspoonful onto ungreased cookie sheets.", "Bake at 350\u00b0 for 8 minutes."]
["butter", "sugar", "egg", "milk", "vanilla", "flour", "cocoa", "baking soda", "salt", "marshmallows"]