Step 1

Preheat oven to 350°F and line a muffin pan with four liners (or grease).

Step 2

In a medium bowl, completely mash banana with a potato masher or fork. Add sugar, egg white, and oil. Stir with a spoon until just combined (mixture will still be lumpy).

Step 3

Add flour, baking powder, baking soda, salt, cinnamon, and nutmeg. Stir until just combined. If desired, stir in optional chocolate chips.

Step 4

Divide mixture between the four prepared muffin cups, filling each about 2/3 of the way full. Bake for 18 to 25 minutes, until a toothpick inserted into the center of the muffins comes out mostly clean and the tops of the muffins begin to turn golden.

Step 5

Cool in the pan until cool enough to handle before transferring to a cooling rack to cool completely.

Step 6

Enjoy!