Preheat your oven to 350 and spray a muffin tin with non-stick spray
In a medium bowl combine all dry ingredients then set aside
In a large bowl use an electric mixer to combine bananas and brown sugar. Blend until it reaches applesauce consistency. Add in the Willa's Oat Milk, eggs, butter (after melting the butter in a bowl in the microwaves the bowl aside), and vanilla. Use electric mixer to combine.
Slowly fold dry mixture into wet mixture.
Place the chopped walnuts and cinnamon into the bowl you melted the butter in then mix until nuts are coated in cinnamon. The butter reside will assist in this.
Fill muffin tin ¾ full with muffin mixture. Top with coated walnuts.
Cook in oven for 18 minutes or until you can stick a toothpick in the center of a muffin and have it come out clean. Once cooked immediately remove from muffin tin and place on a cooling rack.
Notes
If you prefer more nuts, add additional walnuts into the muffin mixture before cooking
You can replace the 2 cups of Oat flour with 'regular' all-purpose flour