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Close-up of a moist slice of sourdough zucchini bread with walnuts, showcasing tender crumb and golden crust.

Sourdough Zucchini Bread


  • Author: Lana
  • Total Time: 1 hour 20 minutes
  • Yield: 1 loaf (8-12 slices)

Description

Experience pure baking joy with our incredibly moist, spiced, and subtly tangy sourdough zucchini bread. Perfect for using discard and fresh zucchini!


Ingredients

Scale
  • 190g (1 1/2 cups) all-purpose flour
  • 1 teaspoon ground cinnamon
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 200g (1 cup) light or dark brown sugar
  • 105g (1/2 cup) olive oil or melted coconut oil
  • 100g (1/2 cup) sourdough starter discard (unfed or recently fed)
  • 60g (1/4 cup) natural yogurt or sour cream
  • 2 large eggs
  • 2 teaspoons vanilla paste or extract
  • 180g (1 1/2 cups) shredded zucchini
  • 100g (3/4 cup) chopped pecans or walnuts


Instructions

1. In a medium bowl, whisk together the all-purpose flour, ground cinnamon, baking powder, baking soda, and salt until thoroughly combined. Set aside.

2. In a large mixing bowl, combine the olive oil (or melted coconut oil), brown sugar, large eggs, sourdough starter discard, natural yogurt (or sour cream), and vanilla paste or extract. Use a whisk to mix these ingredients vigorously until completely smooth and well-integrated.

3. Pour the wet ingredient mixture into the bowl with the dry ingredients. Using a spatula, gently fold them together, mixing just until no dry streaks of flour remain. Do not overmix.

4. Add the shredded zucchini and chopped pecans or walnuts (if using) to the batter. Gently fold them in until just evenly distributed.

5. (Optional cold ferment): For enhanced flavor and a more moist crumb, cover the bowl tightly and place it in the refrigerator for 8 to 16 hours. If skipping, proceed to the next step.

6. Preheat your oven to 350°F (180°C). Lightly grease and flour a 9×5-inch or 8.5×4.5-inch loaf pan, or line it with parchment paper for easy removal.

7. Scoop the prepared batter evenly into your loaf pan, smoothing the top with your spatula. Bake for approximately 55-65 minutes, or until a toothpick inserted into the center comes out clean.

8. Once baked, let the bread cool in its pan for 10 minutes.

9. Carefully transfer the loaf to a wire cooling rack to cool completely to room temperature before slicing and serving.

Notes

Don’t Drain the Zucchini! The moisture from the shredded zucchini is vital for keeping the loaf incredibly moist and tender.

The Art of Gentle Mixing: Overmixing leads to a tough loaf. Mix just until combined; a few lumps are fine.

Room Temperature is Key: Use room temperature eggs, yogurt, and sourdough discard for smooth blending and uniform texture.

Understanding Your Sourdough Discard: Unfed or recently fed discard works perfectly, adding tang and tender crumb without needing to be active for rise.

Oil Substitutions: Olive oil can be substituted with melted coconut oil, vegetable oil, or canola oil.

Nutty Customizations: Pecans or walnuts can be omitted or substituted with almonds, sunflower seeds, or pumpkin seeds.

Proper Storage: Store leftovers at room temperature in an airtight container for up to 3 days, refrigerated for up to a week, or wrapped tightly and frozen for up to 3 months.

Recipe Variations: Add 1 cup chocolate chips, enhance spices with nutmeg or ginger, fold in 1/2 cup dried fruit (cranberries, raisins, apricots) and citrus zest, or top with a powdered sugar glaze or cream cheese frosting once cooled.

  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Category: Bread
  • Method: Baking
  • Cuisine: American