Moist Banana Walnut Muffins

1. Preheat oven to 400 F.
2. Place 12 paper cups into a standard size muffin tin. Set aside.
3. Mix together the flour, baking powder, and salt in a medium bowl. Set aside.
4. Combine the eggs, milk, and melted butter in a large bowl. Mix well.
5. Add the brown sugar, vanilla, and ripe bananas to the wet mixture and mix to combine.
6. Add the dry ingredients to the wet ingredients and mix slightly. Add the walnuts.
7. Combine but do not over-mix; the batter should be lumpy.
8. Divide the batter among the 12 muffin cups.
9. Bake for 20 to 25 minutes, or until a cake tester inserted in the middle of a muffin comes out clean.