In medium bowl combine oatmeal flour sugar baking powder and salt Stir to mix Make well in center add pumpkin egg butter and vanilla Stir until dry ingredients are moistened Stir in raisins and nuts Spread mixture in a 9 x 9 pan that has been greased Bake at 350 for 35 to 40 minutes or until firm and lightly browned Let cool in pan Cut into bars