Whisk together the flours, flaxseed, baking powder, cinnamon, and salt in a large bowl. Whisk together the milk, oil, and maple syrup in a separate bowl. Pour the wet ingredients into the dry, then stir everything together, just until combined. Allow the batter to sit for at least 10 minutes.

Heat a bit of butter or oil in a large skillet over medium heat. Pour 1/4-1/3 cup mounds of batter onto the skillet, then quickly drop blueberries onto the uncooked cakes. Cook for 3-4 minutes, until bubbles appear and you can slide a spatula underneath. Flip and cook for 1-3 more minutes, until set.

Enjoy with maple syrup!