Preheat your oven to 350 degrees
Prepare a muffin tin with paper liners
In a bowl mash 3 large, overripe bananas
Chop 1 Cup walnuts to your desired texture
Add the chopped nuts to the mashed bananas, then mix in
1 tsp. baking soda
1 tsp baking powder
1/8 tsp. salt
1/4 tsp. cinnamon
1 1/2 Cups flour
Finally add in
1/3 Cup butter (softened)
3/4 Cup granulated sugar
1 egg
1 tsp. vanilla
Mix everything together until a lumpy batter forms
Scoop into the prepared muffin tin
Add large pieces of walnut to the tops of each muffin cup before baking if desired
Bake for 20 minutes or until a toothpick inserted in the middle comes out clean