Step 1: Preheat the oven

• Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan and line it with parchment paper for easy removal.

Step 2: Mix the dry ingredients

• In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.

Step 3: Prepare the wet ingredients

• In a large mixing bowl, whisk the sugar, eggs, vegetable oil, and vanilla extract until smooth. Stir in the mashed bananas and sour cream or Greek yogurt until fully combined.

Step 4: Combine wet and dry ingredients

• Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix. Fold in the optional mix-ins, if using.

Step 5: Pour into the loaf pan

• Pour the batter into the prepared loaf pan, spreading it evenly with a spatula.

Step 6: Bake the banana bread

• Bake for 50–60 minutes, or until a toothpick inserted in the center comes out clean.
• Allow the bread to cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely.

Step 7: Slice and serve

• Slice the banana bread and serve at room temperature or lightly toasted.