Preheat a waffle maker to medium/high heat and the oven to its lowest temperature setting and the oven to its lowest setting.
In a large bowl mix all the dry ingredients together and whisk to combine. In another bowl or large pyrex mixing cup mix all the wet ingredients together and whisk to combine.
Pour the wet ingredients into the dry ingredients and whisk until no lumps remain. Let batter sit for 10 minutes. Fold in the blueberries.
Making one waffle at a time, transfer finished waffles to the oven racks to keep warm until the final waffle is made.