Creating One Bowl Moist Banana Bread is straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and grease a 4×8-inch loaf pan.
2. Mash Bananas: In a mixing bowl, mash the ripe bananas with a fork until smooth.
3. Add Butter: Stir the melted butter into the mashed bananas until combined.
4. Mix Ingredients: Add baking soda and salt to the mixture, stirring well.
5. Incorporate Sugar: Mix in the granulated sugar, beaten egg, and vanilla extract until fully combined.
6. Add Flour: Gently fold in the flour until just incorporated, being careful not to overmix.
7. Add Extras: If desired, fold in the chopped walnuts or chocolate chips.
8. Transfer to Pan: Pour the batter into the greased loaf pan, spreading it evenly.
9. Bake: Place the pan in the preheated oven and bake for 50-60 minutes or until a toothpick inserted into the center comes out clean.
10. Cool: Once baked, remove the loaf from the oven and let it cool in the pan for about 15 minutes. Then, transfer it to a wire rack to cool completely.

Following these simple steps will lead you to a delicious and moist banana bread that everyone will love!