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Sliced sourdough zucchini bread with visible green zucchini and golden crust, surrounded by ingredients.

Sourdough Zucchini Bread


  • Author: Olivia Baker
  • Total Time: 1 hour 15 minutes
  • Yield: 1 loaf (8-10 slices)

Ingredients

  • Grated zucchini: 1½ cups (about 1 medium zucchini)
  • All-purpose flour: 2 cups (250g)
  • Sourdough discard: ½ cup (120g)—make sure it’s unfed!
  • Granulated sugar: ¾ cup (150g)
  • Brown sugar: ¼ cup (50g)
  • Eggs: 2 large
  • Vegetable oil: ½ cup (120ml) (you can sub with melted coconut oil if you’re feeling fancy)
  • Vanilla extract: 1½ teaspoons
  • Baking soda: 1 teaspoon
  • Baking powder: ½ teaspoon
  • Salt: ½ teaspoon
  • Ground cinnamon: 1½ teaspoons
  • Ground nutmeg: ½ teaspoon

Instructions

  1. Deal with the zucchini: Grate your zucchini finely, then place the shreds in a kitchen towel. Squeeze like you mean it—you want to wring out as much liquid as possible. Too much moisture will make your bread soggy.
  2. Mix your dry goods: In a medium bowl, whisk together the flour, baking soda, baking powder, salt, cinnamon, and nutmeg. This step keeps the spices evenly distributed. (Trust me, no one wants a clump of cinnamon surprise.)
  3. Blend wet ingredients: In a larger bowl, combine your sourdough discard, eggs, sugar, brown sugar, vanilla, and vegetable oil. Mix until everything’s smooth, almost creamy.
  4. Marriage of wet and dry: Slowly fold the dry mixture into the wet until just combined. Over-mixing is a no-no—it can make your loaf dense and sad.
  5. Fold in the zucchini: Gently stir in the grated zucchini. If you’re feeling adventurous, this is the moment to toss in chocolate chips or chopped nuts. I’m partial to walnuts for their earthy crunch.
  6. Bake the dang thing: Pour the batter into your prepared loaf pan. Bake at 350°F (175°C) for 50–60 minutes. You’re looking for a golden-brown top and a toothpick that comes out clean.
  7. Cool it (literally): Let the bread cool for about 15 minutes before you remove it from the pan. If you’ve got the patience of a saint, wait until it’s fully cool before slicing. (I rarely make it that far without “testing” an edge!)
  • Prep Time: 15
  • Cook Time: 60

Nutrition

  • Calories: 180-220
  • Sugar: 12-15g
  • Fat: 6-8g
  • Saturated Fat: 2-3g
  • Carbohydrates: 30-35g
  • Fiber: 1-2g
  • Protein: 4-5g
  • Cholesterol: 20-30mg

Keywords: Sourdough Zucchini Bread