Preheat the oven to 350ºF. Line a 9x5 loaf pan with parchment paper and set aside. I like to spray the loaf pan first with nonstick cooking spray then trim a long strip of parchment paper to the width of the loaf pan. Lay the parchment length-wise in the pan and press down gently so the parchment paper sticks to nonstick spray. Spray the parchment paper in the pan then lay the leftover piece of parchment across the pan. There should be overhang on all side of the pan, allowing you to easily lift the baked banana bread out of the pan later on
In a large mixing bowl, whisk together the oil, granulated sugar, brown sugar, eggs, and vanilla extract until well blended and smooth
¼ cup vegetable oil, 1 cup granulated sugar, ¼ cup brown sugar, 2 large eggs, 2 teaspoons vanilla extract
Stir in the mashed bananas
1 ¼ cups mashed overripe banana
Add to the bowl the flour, baking soda, salt, and mix with a wooden spoon or spatula until just combined
1 ¾ cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon salt
Pour batter into the prepared loaf pan and bake for 60-65 minutes (my oven takes 65 minutes). Halfway through baking, loosely cover the bread with aluminum foil to prevent the top from getting too brown - simply cut a small sheet of foil and place it gently on top of the loaf pan in the oven. Do not crinkle it around the side or pull it taut over the top of the pan. The bread is done when a toothpick inserted in the center comes out clean with only a few small moist crumbs. This may be before or after 60–65 minutes depending on your oven, so begin checking every 5 minutes around the 55-minute mark.
Allow the bread to cool completely in the pan on a wire rack before lifting out of the pan using the parchment overhang and slicing. If you will not be serving the banana bread right away, wrap the bread tightly in plastic wrap while it's still slightly warm to retain moisture