Moist, tender banana bread with a subtle tang from sourdough discard. A perfect way to use up overripe bananas AND leftover starter.

Preheat oven to 350°F (175°C). Grease a 9x5 inch loaf pan.
In a large bowl, mash the bananas. Whisk in the sourdough discard, eggs, melted butter, brown sugar, and vanilla.
In a separate bowl, whisk together the flour, baking soda, salt, and cinnamon.
Add the dry ingredients to the wet and stir until just combined. Fold in chocolate chips or walnuts if using.
Pour the batter into the prepared pan. For a beautiful split top, drag a butter knife down the center.
Bake for 55-60 minutes until a toothpick inserted in the center comes out clean.
Let cool in the pan for 15 minutes, then turn out onto a wire rack to cool completely.