Ingredients
Equipment
Method
Prep and preheat
- Preheat the oven to 350°F and grease a 9x5 loaf pan so the loaf releases cleanly.
- Set up the pan on a sheet pan so any drips can catch while baking.
Mix the dry ingredients
- Whisk all-purpose flour, baking soda, baking powder, salt, and cinnamon together until evenly combined.
Mix the wet ingredients
- Mash very ripe bananas in a large bowl, then stir in granulated sugar, brown sugar, eggs, vegetable oil, and vanilla extract until smooth and fully mixed.
- Stir in grated zucchini that has been squeezed dry so the batter stays thick and not watery.
Combine and bake
- Fold the dry ingredients into the wet ingredients until just combined, stopping when no dry streaks remain.
- Fold in walnuts or chocolate chips if using so they’re evenly dispersed through the loaf.
- Pour the batter into the greased 9x5 loaf pan and spread evenly.
- Bake at 350°F for 55–65 minutes, until the top is deep golden and a toothpick in the center comes out clean.
Cool and slice
- Cool the loaf in the pan for 15 minutes, letting the crumb set before slicing.
Notes
Pro tip: squeeze the grated zucchini very well so the loaf bakes up dense and moist instead of gummy. Store sliced bread in an airtight container in the fridge for up to 4 days, or freeze whole (wrap well) for up to 2 months. For a nut-free swap, replace walnuts with chocolate chips or omit the mix-in for a classic plain loaf.
