French Butter Cookies
["1 1/2 c. powdered sugar", "1 tsp. soda", "1 tsp. cream of tartar", "1/4 tsp. salt", "1 tsp. vanilla", "1 c. softened butter", "1 egg", "2 1/4 c. all-purpose flour (do not pack, level off)"]
["In a large bowl combine sugar, soda, cream of tartar, salt, vanilla, butter and egg.", "Mix with mixer on low speed for about 1 minute or until well blended.", "Gradually add flour; blend at low speed until well mixed.", "If desired, tint with a few drops of food coloring."]
["powdered sugar", "soda", "cream of tartar", "salt", "vanilla", "butter", "egg", "all-purpose flour"]