Mix flour, baking powder, salt, baking soda and sugar. Blend in shortening with a fork until mixture is fine.
Add milk and stir until just mixed. Add raisins and mix. Add cinnamon and mix until swirled through batter.
Do not mix batter any more than you have to. Scrape batter onto well floured surface. Flour top and pat down with hands until 1/2 inch thick.
Cut with 2-inch cutter and place on greased baking pan. Bake at 400° F for 10-15 minutes Until golden brown. Frost with powdered sugar icing.Makes 24 biscuits Source: