Combine flour, cinnamon, baking powder, baking soda and salt in medium bowl. Beat oil, butter and brown sugar with hand mixer until light and fluffy. Beat in egg, vanilla and pumpkin. Add flour mixture gradually to the wet mixture and beat at low speed until blended well. Add in dried cranberries and walnuts and stir by hand to mix well. Drop tablespoonfuls of mixture onto ungreased cookie sheet 2 inches apart. Flatten slightly with backside of spoon if desired and put walnut piece on each cookie.