In a large bowl, whisk the egg with the milk, honey, lemon juice and vanilla. Add the flours, baking powder, baking soda and salt and fold gently until mostly combined. Fold in the blueberries.
Place a pan over medium heat and add a bit of coconut oil. Once the pan is hot (a drop of water sizzles on its surface), dollop the batter into the pan by the quarter-cup. Cook for about 2-3 minutes on the first side, flip, and cook for about 1-2 minutes on the other side. These are absolutely best piping hot out of the pan!