Preheat the oven to 400ºF (204ºC) and grease and line a 15 x 10 inch baking pan.
Whisk together the cinnamon, the flour, baking powder, baking soda and salt in a bowl.
In a separate bowl, mix the eggs, buttermilk, melted butter, maple syrup and vanilla essence.
Mix the dry ingredients into the wet ingredients and stir until just combined, do not overmix.
Fold in two cups of the berries and pour into the prepared baking pan.Sprinkle over the remaining berries. Place in the oven to bake for 25 – 30 minutes until a toothpick comes out clean when inserted in the centre.
Allow to cool in the pan for ten minutes before serving.
Serve dusted with powdered sugar and a drizzle of maple syrup.