Preheat the oven to 375°F. In a large bowl, combine the flour, coconut sugar, and bran flakes.

In a separate bowl, whisk together the eggs, milk, vegetable oil, and vanilla extract.

Pour the wet ingredients into the dry ingredients and stir until just combined. Gently fold in the blueberries.

Divide the batter evenly among muffin cups lined with paper liners. Bake for 20 minutes or until golden brown.

Remove from oven and let cool slightly before serving.