Pre-heat the oven to 180℃/350℉. Peel and mash the bananas. Wash and grate the carrots. If you are not using organic ones, peel them first as well.
Put all the wet ingredients in a large bowl and mix until you have a consistent mixture.
In a separate bowl add all the dry ingredients and mix them until combined.
Add the dry ingredients to the wet ingredients and mix until you have a thick muffin batter. You can mix with a stand-alone mixer, hand mixer or simply with a whisk.
Fill the muffin cups until they are bout ¾ filled.
Bake for about 20 minutes.
Remove the muffin cups from the muffin tin after a few minutes and allow to cool on a wire rack.