Preheat oven to 400 degrees. Line a muffin tin with liners or use non-stick spray.
In a large bowl combine flours, protein powder, baking powder and salt.
In a medium sized bowl whisk together yogurt, egg, applesauce, sugar and vanilla.
Add wet ingredients to the flour mixture and mix until just combined.
Place blueberries in a small bowl and coat with reserved 1 tbsp flour.
Gently fold blueberries into batter.
Fill the prepared muffin tin, nearly filling each muffin to the top. This should make ~6 or so muffins, depending on the size of your muffin tin.
Bake muffins at 400 for 18-20 minutes until golden brown and a toothpick inserted comes out clean.
Allow to cool fully and enjoy! Store in an airtight container for up to 1 week or freeze for up to 2 months.