Creating these Whole Wheat Blueberry Banana Muffins is a breeze with these easy-to-follow steps:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C). Line a muffin tin with paper liners or grease it with cooking spray.
2. Mix Dry Ingredients: In a medium bowl, whisk together the whole wheat flour, baking soda, baking powder, salt, and cinnamon (if using).
3. Combine Wet Ingredients: In another bowl, combine the mashed bananas, honey (or maple syrup), oil, egg, and vanilla extract. Mix until well combined.
4. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, mixing gently until just combined. Be careful not to overmix.
5. Fold in Blueberries: Gently fold in the blueberries, ensuring they evenly distribute throughout the batter.
6. Fill Muffin Tins: Spoon the batter into the prepared muffin tins, filling each cup about two-thirds full.
7. Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes or until a toothpick inserted into the center comes out clean.
8. Cool Muffins: Once baked, remove the muffins from the oven and allow them to cool in the tin for about 10 minutes. Then, transfer them to a wire rack to cool completely.

Enjoy the delightful aroma as these muffins bake to perfection.