Sourdough Zucchini Muffins

This Sourdough Zucchini Muffins recipe is a sneaky way to add rich nutrients to muffins through adding the zucchini. They are also delicious!

Sourdough Zucchini Muffin on plate

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What is Sourdough Zucchini Muffins?

This recipe not only adds zucchini, but also adds sourdough discard. The sourdough discard as well as the zucchini adds moisture and richness of flavor to a regular muffin. The zucchini is super mild and just takes on the flavor of the cinnamon in the muffin. Zucchini is a low calorie food and it gives the muffin great texture.

Ingredients you’ll need for this recipe

  • 1 cup butter
  • 2 1/4 cups sugar
  • 3 eggs
  • 1 Tbsp vanilla
  • 1/2 cup sourdough discard
  • 2 1/2 cup flour
  • 1 tsp salt
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 1 Tbsp cinnamon
  • 2 cups grated zucchini (about 2 medium zucchini)

What Works Best to Grate Zucchini?

This recipe calls for grated zucchini. I find the best tool to do this is with a box grater. I use the smallest hole shredder. Simply cut off one end of the zucchini and run it up and down the shredder until you get close to the other end. Be careful not to get too close to your fingers! It hurts when you shred them too.

Box Grater

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Do I Really Need to Use Zucchini? What Alternatives are There?

Zucchini works really well in baking. But if you do need to swap it out, you can either use another squash (yellow squash) or banana or apple sauce. Of course the banana and applesauce both have a lot more flavor than a zucchini and it will change the flavor of the muffin.

Answers to Your Questions About Making Sourdough Zucchini Muffins

Do I need to peel Zucchini before grating it

No, it is not necessary to peel the zucchini. Although when my kids were younger they detected the green and questioned it. So you can further disguise the zucchini by peeling it, but it is not necessary at all.

Do I need to squeeze the liquid out of the zucchini before combining it into the batter

No, you do not need to squeeze out the liquid from the zucchini before adding it to the muffins. You want that liquid to make your muffins nice and moist.

How to Make Sourdough Zucchini Muffins

  • Preheat oven to 375 degrees.
  • Cream butter and sugar for 2-3 minutes.
  • Add eggs and vanilla. Beat on med/high for another 2 minutes.
  • Add in sourdough discard and blend just until combined.
  • Add flour, salt, baking powder, baking soda, and cinnamon and blend just until all flour in incorporated.
  • Fold in grated zucchini.
  • Divide into prepared muffin pan (muffin cups or buttered pan). I like to use a cookie scoop.
  • Bake for 18-20 minutes or until toothpick comes out clean.

Find the measurements and full recipe below!

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Tips for Adding Flavor or Changing it Up a Little Bit

The main flavor of this muffin is cinnamon. I normally sprinkle a little cinnamon and sugar on top. Nutmeg goes really well with cinnamon. You could add a 1/4 teaspoon for an extra punch of flavor. You could also add Chocolate Chips. If you want more of a tangy flavor from the sourdough, you could ferment the batter in the refrigerator overnight. Just take it out in the morning and cook as stated.

Plate with zucchini muffins on it.

Zucchini Sourdough Muffins

Healthy and delicious! These Zucchini Sourdough Muffins are sweet and cinnamon-y, with the added vitamins from zucchini and the added flavor of sourdough discard.
Print Recipe
Sourdough Zucchini Muffin on plate
Prep Time:20 minutes
Cook Time:20 minutes

Ingredients

  • 1 cup butter
  • 2 1/4 cups sugar
  • 3 eggs
  • 1 Tbsp vanilla
  • 1/2 cup sourdough discard
  • 2 1/2 cup flour
  • 1 tsp salt
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 1 Tbsp cinnamon
  • 2 cups grated zucchini

Instructions

  • Preheat oven to 375 degrees.
  • Cream butter and sugar for 2-3 minutes.
  • Add eggs and vanilla. Beat on med/high for another 2 minutes.
  • Add in sourdough discard and blend just until combined.
  • Add flour, salt, baking powder, baking soda, and cinnamon and blend just until all flour in incorporated.
  • Fold in grated zucchini.
  • Divide into prepared muffin pan (muffin cups or buttered pan). I like to use a cookie scoop.
  • Bake for 18-20 minutes or until toothpick comes out clean.
Servings: 18
Zucchini Muffins in pan

Did you make this recipe?

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2 Comments

  1. 1 star
    Hi! I just made these muffins and they didn’t rise at all and were very flat and soggy. Is there a typo with the baking soda? Maybe more than 1 tsp? Not sure what happened on my end!

    1. I use both baking soda and baking powder in this recipe. Just one teaspoon each. Did you also use baking powder when you made them? Also, the freshness of a rising agent can effect how much your baked goods will rise. I’m so sorry this didn’t turn out for you!

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