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Learn to make the best sourdough discard blueberry muffins using fresh or frozen blueberries and leftover discard! Sourdough blueberry muffins are soft and fluffy, with a subtle tang from the discard, and are perfect for breakfast or afternoon snacks.

New to sourdough? Check out our How to Make Sourdough Starter Guide!

Sourdough discard chocolate chip muffins on a farmhouse table

We’ve been on a roll with sourdough muffins over here, guys.

First, it was our sourdough chocolate chip muffins, but then we ate all the chocolate chips, and our muffin craving was not satisfied.

What were we to do? Go without muffins until we obtain chocolate chips?

Of course not. No, we tweaked the recipe and made sourdough discard blueberry muffins.

Sourdough discard blueberry muffins are everything you love about muffins (soft, fluffy, almost a cupcake that you can have for breakfast) but with big, beautiful blueberries folded into every bite.

They’re perfect for breakfast served alongside eggs and sausage or by themselves with a tall glass of milk for an afternoon snack.

Best of all, because of the sourdough discard, these sourdough blueberry muffins have a beautiful sourdough tang that makes them feel extra special.

Just ask my toddler, who daily says, “I need a muffin,” even after we’ve eaten all the muffins.

If that sounds familiar, you need these sourdough discard blueberry muffins in your life. Let me show you how to make them.

Why You’ll Love sourdough Discard Blueberry Muffins

These sourdough discard blueberry muffins are the kind of recipe you’ll come back to again and again because they’re reliable, cozy, and practical. We love them because they’re:

Perfect use for sourdough discard – no feeding or planning required, just use what’s already piling up!
Soft, fluffy texture with a tender crumb that no one can resist.
Loaded with blueberries in every bite, which basically makes them a salad, right?
Mild flavor – not sour, just balanced and lightly sweet thanks to the sugar and blueberries.
Quick and easy to make with pantry staples.
Freezer-friendly, making them great for meal prep!

Ingredients You’ll Need for Sourdough Discard Blueberry Muffins

Like all of my favorite recipes, these sourdough blueberry muffins require just a few pantry staples you probably have on hand:

Sourdough discard – unfed and straight from the fridge is fine
All-purpose flour – provides structure and softness
Sugar – adds sweetness and helps with moisture
Eggs – bind the batter and give lift
Butter or oil – for richness and a tender crumb
Milk or water – keeps the batter balanced
Blueberries – fresh or frozen
Baking powder & baking soda – for a tall, fluffy rise
Salt & vanilla – enhance flavor and adds warmth

How to Make Sourdough Discard Blueberry Muffins

Step 1: Preheat & Prep. Preheat oven to 350°F. Line a muffin tin with paper liners or lightly grease it with butter or coconut oil.

Step 2: Mix the Wet Ingredients. In a mixing bowl with a paddle attachment or a large bowl, whisk together the eggs and sugar until smooth. Mix in the melted butter, vanilla extract, sourdough starter, and milk until well combined.

(Check the instructions below for long-fermenting instructions.)

Step 3: Add the Dry Ingredients. Add the flour, baking powder, baking soda, and salt to the wet mixture. Mix just until everything is incorporated and no dry spots remain.

Sourdough discard blueberry muffin batter

Step 4: Fold in the Blueberries:In a small bowl, toss the blueberries with 1 tablespoon of flour to prevent them from sinking to the bottom of the batter. Then, gently fold the blueberries into the batter.

Tossing blueberries with flour for sourdough blueberry muffins

Adding blueberries to sourdough discard blueberry muffins

Step 5: Bake. Divide the batter evenly among your prepared muffin cups. Bake for 18–22 minutes, or until the tops are set and a toothpick inserted in the center comes out mostly clean.

Sourdough discard blueberry muffins before baking

Step 6: Cool. Let the muffins cool in the pan for 5 minutes, then transfer to a wire rack.

Sourdough discard blueberry muffins after baking

How to Long-Ferment Sourdough Blueberry muffins (Optional)

This step is optional, but if you want to long-ferment your sourdough blueberry muffins for deeper sourdough flavor and gentler digestion:

Mix eggs, sugar, melted butter, vanilla, sourdough starter, milk, and flour only.
Cover and ferment at room temperature for 8–12 hours, or refrigerate up to 24 hours.
When ready to bake, stir in baking powder, baking soda, salt, and blueberries, then bake as directed.

Tips for the Perfect Sourdough Blueberry Muffins

Do not overmix — overmixing the batter will make the muffins dense.
Toss the blueberries with flour before folding them into the batter to prevent sinking.
Use room-temperature ingredients for even baking.
Fill muffin cups ¾ full for a nice rise.

Variations & Substitutions

Lemon Blueberry: Add lemon zest and a splash of lemon juice to the batter.
Whole Wheat: Replace up to 50% of the flour with whole wheat flour.
Dairy-Free: Use coconut oil and plant-based milk for dairy-free blueberry muffins.
Lower Sugar: Reduce sugar slightly for a less-sweet muffin.

Storage & Freezing Instructions

Room Temperature: Store in an airtight container for up to 2 days
Refrigerator: Keeps up to 5 days
Freezer: Freeze completely cooled muffins for up to 3 months

To reheat, thaw at room temperature or warm briefly in the microwave or oven.

Aerial shot of sourdough discard blueberry muffins

Frequently Asked Questions

Can I use unfed sourdough discard?

Yes. Unfed, cold discard works perfectly in this muffin recipe.

Do these muffins taste sour?

Not at all. The sourdough discard adds moisture and depth without a sour flavor.

Can I use frozen blueberries?

Absolutely, that’s what I used! Use them straight from the freezer and fold in gently.

Can I make mini or jumbo muffins?

Absolutely. Adjust baking time as needed.

Serving Ideas

Serve your sourdough discard blueberry muffins:

For breakfast with eggs and sausage to round out the meal.
Lunchbox-friendly snack with a cup of milk
Light dessert with a dusting of powdered sugar
Make-ahead freezer muffins for busy mornings

Sourdough Discard Blueberry Muffins

These sourdough discard blueberry muffins are soft, fluffy, and bursting with juicy blueberries. Made with simple pantry staples and sourdough discard, they’re an easy way to use up discard while baking a bakery-style muffin at home. Perfect for breakfast, snacks, or freezing for later!

Print Recipe Pin Recipe

Prep Time 10

Cook Time 20

Course Bread, Breakfast

Cuisine American

Servings 9

Ingredients

2 eggs
150 grams sugar (3/4 cup)
50 grams milk or water (1/4 cup)
8 tbs melted butter (or coconut oil)
250 grams sourdough discard (about 1 cup)
1 tsp vanilla extract
220 grams flour (1 3/4 cup)
2 tsp baking powder
1/2 tsp baking soda
1 tsp salt
170 grams blueberries (fresh or frozen, 1 1/4 cup)
1 tbs flour (for tossing with the blueberries)

Instructions

Preheat & Prep: Preheat oven to 350°F. Line a muffin tin with paper liners or lightly grease it with butter or coconut oil.
Mix the Wet Ingredients: In a mixing bowl with a paddle attachment or a large bowl, whisk together the eggs and sugar until smooth. Mix in the melted butter, vanilla extract, sourdough starter, and milk until well combined.
(Check the notes below for long-fermenting instructions.)
Add the Dry Ingredients: Add the flour, baking powder, baking soda, and salt to the wet mixture. Mix just until everything is incorporated and no dry spots remain.
Fold in the Blueberries: In a small bowl, toss the blueberries with 1 tablespoon of flour to prevent them from sinking to the bottom of the batter. Then, gently fold the blueberries into the batter.
Bake: Divide the batter evenly among your prepared muffin cups. Bake for 18–22 minutes, or until the tops are set and a toothpick inserted in the center comes out mostly clean.
Cool: Let the muffins cool in the pan for 5 minutes, then transfer to a wire rack.

Notes

For deeper sourdough flavor and easier digestion, follow these directions for a long-ferment:

After mixing eggs, sugar, butter, sourdough starter, milk, and flour (skip baking powder, baking soda, salt, and blueberries), cover the bowl and let rest at room temperature for 8–12 hours, or refrigerate up to 24 hours.
When ready to bake, stir in baking powder, baking soda, salt, and blueberries tossed with 1 tbs flour.
Proceed with baking as directed above

Keyword sourdough blueberry muffins, sourdough discard blueberry muffins

Sourdough muffins Didn’t Turn Out Quite Right? Check Out:

Why is My Sourdough Not Rising?

Why is My Sourdough Bread Gummy? (And how to Fix it)

Why is My Sourdough Starter Not Rising?

Why is My Sourdough So Sticky? (And How to Fix it!)

You’ll Love These Sourdough Discard Blueberry Muffins

Whether you serve them for breakfast or snack time, these sourdough blueberry muffins are sure to be a family staple! They’re kid-friendly, easy to make, and use pantry staples you probably keep on hand. Make them once or twice a week to keep your pantry filled with snacks, and you’ll have a houseful of happy campers. Happy baking!