Instructions:
Preheat the oven to 350°F (175°C). Grease a 9×5 inch loaf pan.
Mix the wet ingredients: In a large bowl, stir together the melted butter and sugar. Add the eggs and vanilla extract, and mix until smooth.
Add dry ingredients: In a separate bowl, whisk together flour, baking soda, and salt. Gradually add the dry ingredients to the butter mixture, stirring until combined.
Fold in the bananas and sour cream: Gently fold in the mashed bananas and sour cream until just combined. For extra texture, fold in the chopped walnuts.
Bake: Pour the batter into the prepared loaf pan and bake for 60-70 minutes, or until a toothpick inserted into the center comes out clean.
Cool and enjoy: Let the bread cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
Perfectly moist, rich, and flavorful! Enjoy a slice warm or toasted.