Butter Cookies(Roll Type)  
["1 c. (2 sticks) butter", "1 1/2 c. powdered sugar", "1 egg", "1 tsp. vanilla", "2 1/2 c. flour", "1 tsp. soda", "1 tsp. cream of tartar", "1/4 tsp. salt"]
["Cream butter; add powdered sugar until fluffy. Add beaten egg and vanilla. Add dry ingredients. Blend into creamed mixture."]
["butter", "powdered sugar", "egg", "vanilla", "flour", "soda", "cream of tartar", "salt"]