Sourdough Lemon Poppyseed Zucchini Bread: Sourdough Sundays

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A sweet and tart bread made with plenty of summer zucchini, poppyseeds, sourdough discard, and tart Meyer lemons.

A yellow and white placemat with two mini loaves of bread sitting diagnal with two yellow lemons in one corner and a green zucchini in the other corner.

If you are like me you’ve been looking for ways to use your sourdough discard.  I feel guilty when I throw it away so I try to use it at least 2 or 3 times a month.  I’ve made pancakes, waffles, biscuits, English muffins, and several other recipes so I was looking for something different.

A friend of mine gave me several large zucchini so I thought if I could use zucchini and sourdough that would be a total bonus.  This recipe for Sourdough Lemon Poppyseed Zucchini Bread uses both plus I got to use one of my delicious Meyer lemons.

I like that this recipe can be made all at once and doesn’t require rising or resting time like many sourdough discard recipes.  That’s because there is some baking powder in the dough which I was totally fine with because I wanted something quick.

Pin image: A yellow and white placemat with two mini loaves of bread sitting diagnal with two yellow lemons in one corner and a green zucchini in the other corner, text overlay, a cutting board lined with a jar of sourdough starter, a cup of flour, two lemons, a large zucchini, a cup of sugar, 2 eggs, and butter.


  • flour
  • baking powder
  • salt
  • butter
  • sugar
  • brown sugar
  • eggs
  • sourdough discard
  • milk
  • Meyer lemon
  • zucchini
  • poppyseeds

I had all of the ingredients on hand because they are all pantry staples for me.  The only ingredients I may have had to go to the store for would be the zucchini and the poppyseeds but I had both on hand.

To make the bread I simply combined the butter and sugars then mixed in the eggs.  After that mixture was well combined I stirred in the sourdough discard and the milk.  Then I added the dry ingredients.   This results in a dry dough but don’t worry.

Two mini loaves of lemon poppyseed zucchini bread on a yellow and white placemat.

Finally I added in the lemon juice and zucchini which yielded the perfect quickbread dough.  I baked mine in mini loaf pans so I could share with friends but you can make it in a single loaf pan as well. It goes into the oven and in under an hour it’s ready to enjoy.

I loved the tart lemons contrasting with the sweetness of the bread.   The zucchini kept the bread moist but you couldn’t taste it at all.  This is a great way to get your kids to eat veggies without even knowing it. 

Pro Tips and Substitutions:

  • Don’t have any zucchini?   You can substitute grated yellow squash or apples in place of the zucchini.  If using apples I usually add cinnamon to the recipe as well.
  • You can turn these into muffins by placing them in 12 muffin cups and baking for 18-20 minutes.
  • Wait for the bread to cool completely before removing from pans or else it tends to stick to the bottoms and sides. 

If you’ve tried my Sourdough Lemon Poppyseed Zucchini Bread or any other recipe on Hezzi-D’s Books and Cooks please take a minute to rate the recipe and leave a comment letting me know how you liked it. I love hearing from you! You can FOLLOW ME on:

More Sourdough Recipes:

Sourdough Lemon Poppyseed Zucchini Bread

Yield: 1 loaf or 4 mini loaves
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes

A quick bread filled with summer zucchini, tart Meyer lemons, poppyseeds, and sourdough starter!


  • 6 Tablespoons butter, softened
  • 1/2 c. brown sugar
  • 1/4 c. sugar
  • 2 eggs
  • 1/2 c. sourdough discard
  • 1/4 c. milk
  • 1 1/2 c. flour
  • 2 teaspoons baking powder
  • 1 teaspoon salt
  • 1 1/2 c. shredded zucchini
  • 1 Meyer lemon, juiced
  • 2 Tablespoons poppyseeds


  1. Preheat the oven to 400 degrees. Grease a loaf pan or 4 mini loaf pans and set aside.
  2. In a large bowl cream together the butter, sugar, and brown sugar. Add the eggs and mix well.
  3. Stir in the sourdough discard and the milk and mix until smooth.
  4. In a medium bowl combine the flour, baking powder, and salt. Add to the bowl with the wet ingredients and mix until a thick batter forms.
  5. Add the zucchini, lemon juice, and poppyseeds to the bowl and mix until the batter is well combined.
  6. Pour into the prepared loaf pan or mini loaf pans.
  7. Bake the loaf pan for 50 minutes or the mini loaf pans for 25-30 minutes. The bread is ready is you stick a tootpick in the center and it comes out clean.
  8. Remove from oven and cool completely on a wire rack before removing from pan.


A Hezzi-D original recipe

Nutrition Information:
Yield: 12 Serving Size: 1
Amount Per Serving: Calories: 176Total Fat: 7gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 47mgSodium: 332mgCarbohydrates: 26gFiber: 1gSugar: 12gProtein: 3g
A yellow and white placemat with two mini loaves of bread sitting diagnal with two yellow lemons in one corner and a green zucchini in the other corner.

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