Preheat oven to 200 deg C. In a bowl, combine sifted flour, oats, baking powder, cinnamon and brown sugar together, mix well. Stir in all the remaining ingredients except blueberries just until moistened (do not overmix). Gently stir in blueberries.Divide mixture into 5 paper cases to ¾ full batter. Bake 18 to 20 minutes or until lightly golden brown and toothpick inserted in center comes out clean.