Preheat your oven to 350°F (175°C). This ensures your muffins bake evenly and rise beautifully.
If you're using muffin liners, line the muffin tin with them to avoid sticking. If not, lightly grease the muffin tin with butter or cooking spray.
In a large mixing bowl, whisk together the white whole wheat flour, baking powder, ground cinnamon, freshly ground nutmeg, ground ginger, and salt.
In another bowl, mash the very ripe bananas with a fork until smooth.
Add the melted unsalted butter, honey, egg, milk, and pure vanilla extract to the mashed bananas. Whisk until everything is well combined and smooth.
Pour the wet mixture into the bowl of dry ingredients. Gently fold the mixture together using a rubber spatula until just combined. Be careful not to overmix; a few lumps are perfectly fine.
Scoop the batter into the prepared muffin tin, filling each cup about 3/4 full.
Place the muffin tin in the preheated oven and bake for 18-22 minutes or until a toothpick inserted into the center comes out clean.
Once baked, remove the muffins from the oven and let them cool in the tin for about 5 minutes. Then, transfer them to a wire rack to cool completely.