The recipe is from the Everyday Italian show by Giada De Laurentiis. I love watching her show; her cooking style is quick, simple, and yet, it's always fresh.  

  The original recipe was a Banana Muffins with Mascarpone Cream Frosting. I modified the recipe by omitting the cream cheese frosting and adding the walnut instead. Enjoy..

Banana Muffin

3 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon salt
1/2 teaspoon baking powder
1/2 teaspoon ground cinnamon
1/2 teaspoon ground nutmeg
2 cups sugar
1 cup vegetable oil
3 large eggs
1 tablespoon vanilla extract
4 ripe bananas, peeled and coarsely mashed

Preheat the oven to 325 degrees F.

In a bowl, whisk the flour, baking soda, salt, baking powder, cinnamon, and nutmeg

In different bowl, beat the sugar, oil, eggs, and vanilla. Add in the banana. Add the dry ingredients above and stir until blended.

Add the batter on the prepared baking aluminum. Bake on the middle rack until the tops are golden brown and insert tooth pick into the center to check it come with no crumbs attached, in about 25 minutes