Directions In a large bowl, beat the butter, oil and sugars. Beat in eggs until well blended. Beat in vanilla. Combine the flour, baking soda and cream of tartar; gradually add to creamed mixture. Drop by small teaspoonfuls onto ungreased baking sheets. Bake at 375degrees for 8-10 minutes or until lightly browned. Remove to wire racks to cool. Yield: about 5 dozen. Originally published as Amish Sugar Cookies in Country Extra July 1990, p45