Papa's Sugar Cookies Recipe

In a large bowl, beat the butter, oil and sugars until well blended. Add eggs, one at a time, beating well after each addition. Beat in the butter flavoring, orange peel and vanilla. Combine the flour, nuts, baking soda, salt, cream of tartar and cinnamon; gradually add to butter mixture and mix well. Cover and refrigerate for 1 hour or until easy to handle. Roll into 1-in. balls, then roll in additional sugar. Place 2 in. apart on ungreased baking sheets. Flatten with a glass dipped in additional sugar. Bake at 350° for 10-12 minutes or until edges begin to brown. Remove to wire racks. Yield: 8 dozen.