01 -
Preheat oven to 175°C. Generously grease a 23 × 13 cm loaf pan.
02 -
In a large bowl, whisk together flour, both sugars, baking soda, cinnamon, and salt until evenly blended.
03 -
In a separate medium bowl, thoroughly mix mashed bananas, yogurt or sour cream, eggs, melted butter, vegetable oil, and vanilla extract.
04 -
Gently fold the banana mixture into the dry ingredients, mixing just until incorporated. Avoid overmixing.
05 -
Carefully fold in walnuts or chocolate chips, if using, ensuring minimal stirring to maintain a tender crumb.
06 -
Spread batter evenly into prepared pan. Bake for 55 to 65 minutes, until golden brown and a toothpick inserted in the center comes out clean or a digital thermometer reads 93–96°C.
07 -
Cool pan on a wire rack for 15 minutes. Remove loaf from pan and allow to cool completely before slicing and serving.