Sourdough Zucchini Bread Recipe
This sourdough zucchini bread is moist, tender, and lightly tangy, a genius way to use up sourdough discard and summer zucchini in one incredibly easy loaf.
A Loaf That Finally Gives Your Sourdough Discard a Real Purpose
If you have been keeping a sourdough starter alive and staring at that jar of discard wondering what on earth to do with it, this sourdough zucchini bread recipe is your answer. It takes two things many home bakers have in excess during the summer months, garden zucchini and sourdough discard, and turns them into a tender, subtly tangy loaf that tastes like a cross between banana bread and a bakery quick bread. This is one of those sourdough discard ideas that actually feels like a treat rather than a chore.
Unlike a full sourdough loaf, there is no long fermentation or shaping involved here. This is a quick bread through and through, just mixed, poured, and baked, which makes it one of the more approachable quick sourdough breakfast recipes you can pull together on a weekday morning or lazy Sunday.
Before we get cooking, the right tools and ingredients make a real difference here. A sturdy loaf pan and a good box grater help you get even slices and properly wrung out zucchini, which keeps the crumb from turning gummy. These are the products that genuinely help this recipe shine:
Why Sourdough Discard Belongs in Zucchini Bread
Sourdough discard is not just a way to reduce waste. It brings a gentle tang that balances the sweetness of the sugar and the freshness of the zucchini, giving the loaf more depth than a standard zucchini recipe recipes you might find elsewhere. It also adds moisture and a slightly denser, more satisfying crumb, which is exactly what you want in a good slice of quick bread.
This recipe fits neatly into the world of sourdough recipes healthy bakers reach for, since zucchini sneaks in fiber and nutrients without weighing down the flavor. It is proof that healthy additions and genuinely delicious results are not mutually exclusive.
Chef's Tip: Do not skip squeezing the moisture out of your grated zucchini. Excess water is the number one reason quick breads turn soggy or take forever to bake through in the middle.
Tips for the Best Texture Every Time
A few small details separate an okay zucchini bread from a great one.
- Do not overmix the batter once the flour goes in. Stir just until the streaks of flour disappear so the bread stays tender instead of tough.
- Use unfed discard straight from the fridge. It does not need to be bubbly or active since there is baking soda doing the leavening work here.
- Check doneness early. Ovens vary, so start peeking at the 50 minute mark rather than waiting the full hour.
- Let it cool fully before slicing, even though the smell will make that genuinely difficult. A warm loaf can seem underbaked in the center simply because it has not finished setting.
This method also works well as a base for other sourdough summer recipes, since the technique translates easily to shredded carrot, yellow squash, or even grated apple when zucchini season winds down.
Ready to Bake
This loaf comes together in one bowl for the wet ingredients and one for the dry, so cleanup is minimal and the process is nearly foolproof. It is a wonderful entry point if you are newer to baking with sourdough loaves and discard, since there is no shaping, scoring, or proofing to worry about.
Ready to make it? Here is the full step-by-step recipe:
Sourdough Zucchini Bread Recipe
This sourdough zucchini bread is moist, tender, and lightly tangy, a genius way to use up sourdough discard and summer zucchini in one incredibly easy loaf.
Ingredients
- 1 3/4 cups all-purpose flour, spooned and leveled
- 1 cup sourdough discard, unfed, straight from the fridge
- 1 1/2 cups zucchini, grated, lightly packed, excess moisture squeezed out
- 3/4 cup granulated sugar
- 1/4 cup brown sugar, packed
- 1/2 cup vegetable oil, or melted coconut oil
- 2 large eggs, room temperature
- 1 tsp vanilla extract
- 1 tsp baking soda
- 1 1/2 tsp ground cinnamon
- 1/2 tsp salt
- 1/2 cup walnuts, chopped, optional
Instruction
Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x5 inch loaf pan and line it with parchment paper, leaving an overhang on the long sides.
Grate the zucchini and squeeze out the excess moisture using a clean kitchen towel or cheesecloth. Set aside.
In a large bowl, whisk together the sourdough discard, granulated sugar, brown sugar, oil, eggs, and vanilla extract until smooth and glossy.
Fold in the grated zucchini until evenly distributed.
In a separate bowl, whisk together the flour, baking soda, cinnamon, and salt.
Add the dry ingredients to the wet ingredients and stir gently just until combined. Do not overmix.
Fold in the chopped walnuts, if using.
Pour the batter into the prepared loaf pan and smooth the top with a spatula.
Bake for 50 to 60 minutes, until a toothpick inserted into the center comes out clean or with a few moist crumbs.
Let the bread cool in the pan for 15 minutes, then lift it out using the parchment overhang and cool completely on a wire rack before slicing.
Equipment
- 9x5 inch loaf pan
- Box grater
- Large mixing bowl
- Whisk
- Rubber spatula
- Wire cooling rack
Notes
Serving, Storing, and Variations
Slice this bread thick and enjoy it plain, or spread a little butter or cream cheese on top for breakfast. It also makes a lovely afternoon snack alongside coffee or tea.
For storage, keep the cooled loaf wrapped tightly at room temperature for up to two days, refrigerate it for up to a week, or freeze individual slices for up to three months. This makes it an easy make ahead option among recipes using sourdough discard, since you can bake a loaf on the weekend and have breakfast sorted for days.
Want to switch things up? Try folding in chocolate chips instead of walnuts, adding a swirl of cinnamon sugar through the batter, or topping the loaf with a simple lemon glaze once cooled. However you serve it, this loaf is proof that sourdough healthy recipes can be every bit as comforting as your favorite classic quick breads.
