Preheat oven to 350 degrees 2) Lightly grease a 9 x 5 loaf pan 3) Combine the flour, baking soda, and salt in a large bowl. 4) Mash two of the bananas with a fork in a separate bowl. Make sure they still have a bit of texture. 5) With an electric mixture, mix the remaining two bananas and sugar together for at least 3 minutes in a large bowl. You want the mixture to be a light and fluffy cream. 6) Add the melted butter, eggs, and vanilla to the banana cream mixture. Beat well, and scrape down the sides of the bowl. 7) Fold in the dry ingredients, until everything is mixed together (don't over blend). Add the nuts and the mashed bananas with a rubber spatula. 8) Pour the batter into the greased loaf pan. 9) Tap the pan on the counter to get the bubbles out of the dough. 10) Bake for 1 hour and 15 minutes at 350 degrees. Rotate the bread regularly to make sure it browns on every side. Bake until the bread is a golden brown. Insert the toothpick into the middle of the bread and if it comes out clean, it's ready. 11) Let the bread cool for at least 10 minutes. When you're ready to serve the banana bread, toast the bread slices and sprinkle with confectioners' sugar.