Preheat your oven to 350.

Butter and flour a metal loaf pan.

In a large bowl, mash the bananas.

To the mashed bananas, whisk in the brown sugar, sourdough starter, eggs, olive oil, melted butter, vanilla and lemon zest. Whisk well to combine.

In a second mixing bowl, whisk together the flour, baking powder, cinnamon, ginger, salt, and baking soda.

Add the dry ingredients to the bowl with the starter and bananas and mix to just barely combine. Don't overmix!

Pour the batter into the prepared loaf pan.

Bake at 350 for 55-65 minutes, or until the top of the bread is golden and a toothpick inserted into the center comes out clean.

Cool in the pan.

Enjoy!