Powdered Sugar Cookies
["1/2 c. margarine", "1/2 c. shortening", "1 c. powdered sugar", "1 egg", "1 tsp. vanilla", "2 c. flour", "dash of salt", "1/2 tsp. baking soda", "1/2 tsp. cream of tartar"]
["Cream margarine, shortening, sugar, egg and vanilla together. Add remaining ingredients.", "Roll in ball.", "Chill.", "Bake on ungreased cookie sheet at 350\u00b0 for 13 minutes."]
["margarine", "shortening", "powdered sugar", "egg", "vanilla", "flour", "salt", "baking soda", "cream of tartar"]