Combine the flour and butter in the bowl of a food processor and pulse just until crumbly. Add the baking powder, salt, sugar (and cinnamon, if desired) and pulse two times. Add the eggs and mix, pour in the milk with the processor running and continue to pulse until a dough forms. On a floured surface, roll the dough to 1/2 inch thickness and cut into circles. Bake at 400° for 12 minutes. 12 scones.