1: Preheat oven to 350°F (175°C).
2: In a large bowl, mash the bananas.
3: Add oats, maple syrup, peanut butter, apple cider vinegar, milk, and vanilla bean paste to the mashed bananas and mix well.
4: In another bowl, combine baking powder, baking soda, salt, and cinnamon.
5: Gradually add the dry ingredients to the wet mixture and stir until just combined.
6: Pour the batter into a lined muffin tin.
7: Bake for 20-25 minutes or until a toothpick comes out clean.
