1.   Preheat oven to 350°F. Spray a standard
muffin tin with non-stick cooking spray and set aside.

2.   Add the mashed bananas, melted butter,
and milk to a large mixing bowl. Mix to combine.

3.   Beat in the egg and vanilla, white sugar & brown sugar.

4.   Add in the remaining dry ingredients and
fold in until just mixed. Then, fold in the walnuts.

5.   Fill muffin pan cups to about 4/5 full.
Top with additional walnuts, if desired.

6.   Place in the pre-heated oven and bake
for 18-20 minutes, or until toothpick inserted in the center of a muffin comes
out clean.

7.Remove from oven and cool for at least 5-10 minutes before serving.