Whisk together the egg and brown sugar, then add the melted butter and whisk to incorporate. Add the vanilla and buttermilk, mixing to combine.
In a separate bowl, combine the flour, baking powder, cinnamon, and salt.
Combine the wet and dry ingredients, taking care to not over mix.
Heat a skillet over medium-low heat. Add a small amount of butter or oil to the pan, if it isn't non-stick. Pour the batter in, ¼ cup at a time, then top with blueberries, and cook until both sides are golden.
Serve warm with maple syrup and extra blueberries.
Recipe by The Kitchen Paper at http://c02.ddd.mwp.accessdomain.com/whole-wheat-blueberry-pancakes/