Preheat oven to 350°F (180°C). Combine flour, oats, baking powder, baking soda, salt and cinnamon in a small bowl and set aside.
Place large spoonfuls of the batter on a parchment lined cookie sheet. Sprinkle tops with optional unrefined sugar and bake for 15-18 minutes, or until set or firm to the touch. Let cool before eating.