Get your waffle iron greased and preheated. In a large bowl, whisk together the flour, baking powder, salt, sugar and cinnamon.

In a separate, small bowl, beat the eggs, then whisk in the butter, milk and vanilla. Pour the wet ingredients into the dry and mix until combined.

Cook batter according to your waffle makers instructions. Once each one is ready, place it on either a wire rack or a towel lined plate, so they don't get soggy. Serve them immediately. If you have any leftovers, pop them in the toaster to reheat them.