There is something deeply grounding about the aroma of warm, cinnamon-spiked bread wafting through the house on a slow afternoon. This sourdough zucchini bread is the ultimate way to utilize your garden harvest or that lonely zucchini sitting in your crisper drawer. By incorporating sourdough discard, you gain a subtle tang and a wonderfully moist crumb that makes every slice feel like a special treat.

Why You Will Love This Recipe

This recipe balances the comfort of a classic quick bread with the unique nuances of sourdough. Here is why it will quickly earn a permanent spot in your baking rotation:

Incredibly moist texture thanks to the combination of zucchini and applesauce.
The perfect solution for using up active sourdough starter or discard.
A versatile foundation that welcomes mix-ins like walnuts, pecans, or dark chocolate chips.
Budget-friendly ingredients that you likely already have in your pantry.
Easily made ahead, making it perfect for meal prep or busy weekend breakfasts.

Recipe Quick Facts

Prep Time	15 minutes
Cook Time	70-75 minutes
Total Time	90 minutes
Servings	10-12 slices
Difficulty	Easy

Ingredients and Why They Matter

Quality ingredients lead to the best results. For this sourdough zucchini bread, we focus on pantry staples that create structure and deep flavor.

All-Purpose Flour: Provides the necessary structure without being too dense.
Sourdough Discard: Adds moisture and a complex, slightly fermented flavor profile.
Canola Oil: Keeps the bread incredibly moist for days compared to butter.
Applesauce: Acts as a natural fat replacer, ensuring the crumb stays tender even after storage.
Zucchini: The star of the show. Be sure to grate it finely and keep the moisture intact.
Cinnamon and Nutmeg: These warm spices turn a simple loaf into a cozy experience.

How to Make Sourdough Zucchini Bread

Follow these steps to achieve that perfect golden-brown crust and a tender, soft interior.

Prep: Preheat your oven to 350 degrees Fahrenheit. Thoroughly grease your 9×5-inch loaf pan and line it with parchment paper for an easy release.
Mix Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg. Set this aside.
Whisk Wet Ingredients: In a large mixing bowl, combine the canola oil, brown sugar, and granulated sugar. Add the eggs, whisking vigorously until the mixture is slightly aerated. Stir in your sourdough discard, applesauce, and vanilla extract.
Incorporate Zucchini: Fold the freshly grated zucchini into your wet mixture until it is evenly distributed.
Combine: Gently fold the dry ingredients into the wet mixture. Do not overmix here; leaving a few small lumps creates a lighter texture. If you are using nuts or chocolate chips, add them now.
Bake: Pour the batter into your prepared pan. Bake for 70 to 75 minutes, or until a toothpick comes out clean from the center.
Cool: Let the bread sit in the pan for 10 minutes before moving it to a wire rack to cool fully before slicing.

Pro Tips for Success

The secret to great quick bread is all in the handling of the batter. Avoid overmixing, as this develops gluten and can lead to a tougher loaf rather than a tender one. Always use a kitchen scale if possible to ensure you have the correct ratio of flour to moisture. Lastly, leaving the moisture in your zucchini is vital. That liquid is exactly what ensures your bread stays soft throughout the week.

Variations and Substitutions

You can customize this loaf based on what you have in your cupboards. For a protein boost, replace a portion of the flour with almond flour or stir in some chia seeds. If you prefer a more indulgent treat, fold in a full cup of semi-sweet chocolate chips. To make it a morning staple, add a handful of toasted walnuts or pecans for a satisfying crunch in every bite.

Frequently Asked Questions

Can I freeze this sourdough zucchini bread?

Yes, absolutely. Wrap the cooled loaf in plastic wrap and then foil. It will stay fresh in the freezer for up to three months.

Why is my bread gummy?

Usually, this happens if you slice the bread while it is still warm. Allow the loaf to cool completely on a rack before cutting.

Do I need to peel the zucchini?

Not at all. The peel adds a beautiful speckling of color, and the nutrients are found right there in the skin.

Final Thoughts

There is nothing quite as satisfying as turning simple, humble ingredients into a loaf of homemade bread. Whether you serve this sourdough zucchini bread with a smear of salted butter or enjoy it plain with a cup of coffee, it is sure to become a seasonal favorite. If you give this recipe a try, please leave a comment and rating below; I love hearing how your bakes turn out!

The Best Sourdough Zucchini Bread

Author: Lily Bennett
Total Time: 90
Yield: 10-12 slices
Diet: Vegetarian

Print Recipe

Description

This sourdough zucchini bread offers a grounding, cozy aroma and a perfectly moist crumb. By utilizing sourdough discard, you gain a subtle, sophisticated tang that pairs beautifully with warm cinnamon and nutmeg. It is an excellent way to use up garden zucchini and works perfectly as a meal-prep breakfast or a comforting afternoon treat. The combination of canola oil and applesauce ensures the loaf remains soft and tender for days, making it a reliable staple for your baking rotation.

Ingredients

2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 tablespoon cinnamon
1/4 teaspoon nutmeg
1/2 cup canola oil
1/2 cup packed brown sugar
1/2 cup granulated sugar
2 large eggs
1 cup sourdough discard
1/2 cup unsweetened applesauce
1 1/2 cups finely grated zucchini

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Instructions

Preheat your oven to 350°F (175°C) and grease a 9×5 inch loaf pan, lining it with parchment paper.
In a medium bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg; set aside.
In a large bowl, whisk the canola oil, brown sugar, and granulated sugar until well combined.
Add eggs one at a time, whisking vigorously; then stir in the sourdough discard, applesauce, and grated zucchini.
Fold the dry ingredients into the wet mixture until just incorporated; do not overmix.
Pour the batter into the prepared loaf pan and smooth the top.
Bake for 70-75 minutes or until a toothpick inserted into the center comes out clean.
Allow the bread to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.

Notes

Ensure your zucchini is finely grated and do not squeeze out the moisture to keep the bread tender. You can stir in 1/2 cup chopped walnuts or dark chocolate chips to the batter before baking for added texture. Store the loaf in an airtight container at room temperature for up to 3 days, or freeze sliced portions for easy grab-and-go breakfasts.

Prep Time: 15
Cook Time: 75
Category: Breakfast
Method: Baking
Cuisine: American