Get Started: Warm up your oven to 325°F (163°C). Make sure the loaf pan is greased and floured.
Go for dry components: Take a spacious bowl, mix the flour, baking soda, and salt together.
Attend to the wet components: Grab another bowl, combine the egg, sugar, and vegetable oil. Ensure it's a smooth blend. Add in buttermilk, vanilla extract.
Blend: Slowly blend the dry ingredients into the wet mixture, then gently mix in the mashed bananas. You can add walnuts if you want.
Now, it's baking time: Pour your batter into the loaf pan you prepared earlier. Set your timer for 60–70 minutes, or until clean toothpick test.
Be Patient: Let the banana bread rest in the pan for a while, say 10 minutes. Afterwards, move it to a cooling rack till it's totally chill.