Step 1: Preheat and Prepare: Preheat oven to 375F (190C). Line a 12-cup muffin tin with paper liners or grease well.
Step 2: Combine Dry Ingredients: In a large bowl, whisk together the flour, baking soda, cinnamon, and salt. Ensure the ingredients are evenly distributed for consistent flavor.
Step 3: Mix Wet Ingredients: In a separate bowl, mash the bananas until smooth. Add the applesauce, honey or maple syrup, egg, and vanilla extract. Whisk until well combined, creating a uniform mixture.
Step 4: Combine Wet and Dry: Pour the wet ingredients into the dry ingredients and stir until just combined. Be careful not to overmix, as this can result in tough muffins. Gently fold in the chopped walnuts or chocolate chips, if desired.
Step 5: Fill Muffin Cups: Divide the batter evenly among the prepared muffin cups, filling each about full.
Step 6: Bake to Perfection: Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean. Rotate the muffin tin halfway through baking to ensure even browning.
Step 7: Cool and Enjoy: Let the muffins cool in the tin for a few minutes before transferring them to a wire rack to cool completely. Enjoy warm or at room temperature.
Optional tips: For a richer flavor, brown the butter before adding it to the wet ingredients. If using all-purpose flour, reduce the baking time by a couple of minutes. For a dairy-free option, use a plant-based milk substitute.