Rich Butter Cookies
["1 c. butter", "1 1/2 c. sugar", "1 egg", "1 tsp. vanilla", "2 1/2 c. flour", "1 tsp. baking soda", "1 tsp. cream of tartar", "1/4 tsp. salt"]
["Cream butter; add sugar gradually, creaming until fluffy.", "Add unbeaten egg and vanilla; beat well.", "Sift together dry ingredients.", "Blend with creamed mixture.", "Drop by teaspoonfuls onto ungreased cookie sheet.", "Bake at 375\u00b0 for 8 minutes."]
["butter", "sugar", "egg", "vanilla", "flour", "baking soda", "cream of tartar", "salt"]