The Best Sourdough Discard Blueberry Muffins: Easy Recipe for Fluffy, Tangy Treats
Embrace the joy of blueberry season with this incredible recipe for Sourdough Discard Blueberry Muffins! This simple yet sophisticated recipe transforms your leftover sourdough starter and plump, juicy blueberries into a breakfast masterpiece. Forget tossing that precious sourdough discard; instead, let it infuse your muffins with a delightful, subtle tang that perfectly complements the burst of sweetness from the blueberries. Each bite offers a harmonious balance of flavors, making these muffins an absolute treat any time of year.
Our recipe is designed to be straightforward, ensuring that even novice bakers can achieve perfectly golden, tall-domed muffins reminiscent of your favorite bakery. The secret lies in the unique blend of ingredients and a two-stage baking process that guarantees a light, airy crumb and those coveted crisp edges. Get ready to impress your family and friends with these irresistible sourdough blueberry muffins that are as easy to make as they are delicious to devour!

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Why You’ll Adore These Sourdough Discard Blueberry Muffins
There’s so much to love about this sourdough discard blueberry muffin recipe. It’s more than just a way to use up your extra starter; it’s a culinary experience that brings a touch of homemade magic to your kitchen. Here are just a few reasons why these muffins will quickly become a favorite:
- Perfectly Balanced Sweetness: Unlike many overly sweet homemade muffin recipes, ours strikes a delightful balance. The natural sweetness of the blueberries shines through, complemented by just enough sugar, allowing the subtle tang from the sourdough discard to truly stand out. This creates a sophisticated flavor profile that’s never cloying.
- Clever Sourdough Discard Use: This recipe offers one of the absolute best ways to utilize your sourdough discard instead of letting it go to waste. Repurposing discard not only reduces food waste but also adds a unique depth of flavor and tender texture to your baked goods. If you’re looking for other fantastic ways to use your discard, don’t miss these amazing sourdough chocolate chip cookies and sourdough discard banana bread!
- Year-Round Enjoyment: Whether blueberries are in peak season or you’re craving them in the dead of winter, this recipe has you covered. It performs beautifully with both fresh and frozen blueberries, ensuring you can enjoy these delightful muffins all year long. Just remember to use frozen berries straight from the freezer without thawing!
- Irresistible Crunchy Topping: The coarse demerara sugar sprinkled generously on top before baking creates a glorious, sweet crunch. This textural contrast perfectly complements the soft, fluffy interior of these jumbo, bakery-style muffins, adding an extra layer of gourmet appeal.
- Effortless Homemade Breakfast: These bakery-style sourdough blueberry muffins are perfect for a quick, grab-and-go breakfast during busy weekdays. Prepare a batch on the weekend, and you’ll have an easy homemade breakfast ready to enjoy all week. Pair them with our sourdough discard pancakes for an ultimate brunch spread!
- Quick & Convenient: From start to finish, these muffins take less than an hour to make. Plus, they freeze exceptionally well, making them ideal for meal prepping or stashing away for unexpected cravings.
Essential Ingredients for Perfect Muffins
Creating these sensational sourdough discard blueberry muffins requires a handful of common baking ingredients, each playing a crucial role in achieving their delicious flavor and signature texture. Here’s a closer look at what you’ll need:

- All-Purpose Flour: The foundation of our muffins, providing structure and body. For the most accurate results and to prevent dense muffins, it’s highly recommended to weigh your flour using a kitchen scale.
- Granulated Sugar: Adds sweetness to the muffin batter, balancing the tang of the sourdough and the tartness of the blueberries.
- Baking Powder: This leavening agent is essential for creating those beautiful, tall, domed tops and a wonderfully fluffy, airy texture, giving these muffins that coveted bakery-style rise.
- Salt: A pinch of salt enhances all the other flavors, making the blueberries taste sweeter and the sourdough tang more pronounced.
- Sourdough Discard: This is the star ingredient! Sourdough discard refers to the unfed portion of your sourdough starter that you typically remove before feeding. Instead of letting it go to waste, it adds a unique, subtle tang and incredible moisture to these blueberry muffins, without making them taste overly “sourdoughy.” This recipe utilizes ½ cup of sourdough discard. If you haven’t embarked on your sourdough journey yet, consider asking a local bakery if they’d be willing to share some of their starter with you!
- Sour Cream: A secret weapon for extra moisture and tenderness, sour cream also contributes to the delightful tanginess, deepening the complex flavors in the muffins. Ensure it’s at room temperature for optimal blending.
- Large Eggs: Bind the ingredients together and add richness, contributing to the muffins’ structure and golden hue. Room temperature eggs mix more evenly into the batter.
- Vegetable Oil (or other neutral oil): Provides essential moisture and helps create a tender crumb. A neutral-flavored oil like canola or sunflower oil works perfectly.
- Whole Milk: Adds moisture and helps achieve the perfect batter consistency. Room temperature milk incorporates better without chilling the other ingredients.
- Vanilla Extract: A splash of vanilla enhances the overall sweetness and aroma, adding a classic warmth to the blueberry flavor.
- Fresh or Frozen Blueberries: The star fruit! Fresh blueberries are fantastic when in season, offering a burst of juicy flavor. Frozen blueberries work equally well; just be sure to add them directly from the freezer without thawing to prevent them from bleeding into the batter and making your muffins soggy. Coating them lightly in flour also helps prevent sinking.
- Demerara Sugar (Optional Topping): This coarse, raw sugar is sprinkled on top before baking to create a beautiful, sparkly crust and an irresistible sweet crunch. Look for “Sugar in the Raw” for a readily available option.
For precise quantities and measurements, please refer to the comprehensive recipe card provided below.
Delicious Substitutions & Creative Variations
While this sourdough discard blueberry muffin recipe is perfect as written, it’s also wonderfully adaptable! Feel free to get creative with these delicious substitutions and variations to tailor the muffins to your taste or what you have on hand:
- Blueberry Almond Twist: For a delightful nutty flavor, add ¼ teaspoon of almond extract to your wet ingredients. Before baking, sprinkle the tops of the muffins with a handful of sliced, toasted almonds for an added crunch and sophisticated touch.
- Zesty Lemon Blueberry Muffins: Brighten up your muffins by adding 1 teaspoon of fresh lemon zest to the wet ingredients. The citrusy aroma and taste perfectly complement the sweet blueberries, creating a truly refreshing treat.
- Mixed Berry Medley: Don’t limit yourself to just blueberries! You can easily substitute other berry varieties like raspberries, blackberries, or chopped strawberries in place of or in combination with blueberries. A mix of berries offers a vibrant burst of flavor and color.
- Chocoholic’s Dream: If you’re a chocolate lover, swap the blueberries for your favorite chocolate chips to create sweet, bakery-style chocolate chip muffins. Dark chocolate, milk chocolate, or even white chocolate chips would be divine!
- Custom Muffin Sizes: This recipe is designed for jumbo muffins, but it can easily be adapted for regular or mini muffins. Simply follow the adjusted baking instructions provided in the recipe card notes below to achieve perfect muffins of any size.
This recipe has been thoroughly tested in its original form. If you experiment with different substitutions or variations, we encourage you to share your results in the comments below! Your feedback helps our community of bakers explore new possibilities.
Recommended Baking Equipment
You don’t need a professional kitchen to whip up these fantastic sourdough discard blueberry muffins. This recipe calls for just a few basic tools that most home bakers already have:
- Mixing Bowls: You’ll need at least two – one large for dry ingredients and one medium for wet ingredients.
- Jumbo Muffin Pan: Essential for achieving those impressive, oversized bakery-style muffins.
- Muffin Liners: Paper or parchment liners make for easy cleanup and help prevent sticking. Alternatively, you can grease your muffin tin thoroughly.
- Whisk: For combining dry ingredients and whisking wet ingredients until smooth.
- Spatula or Wooden Spoon: Ideal for gently folding the wet and dry mixtures together, ensuring you don’t overmix.
- Kitchen Scale: Highly recommended for precise flour measurement (in grams) to guarantee consistently light and fluffy muffins.
- Large Cookie Scoop or Spoon: For neatly filling muffin liners with batter.
- Wire Cooling Rack: For cooling the muffins completely and preventing them from becoming soggy on the bottom.
How to Bake the Best Sourdough Discard Blueberry Muffins
Making these sourdough discard blueberry muffins is a simple and rewarding process. Follow these straightforward steps to achieve perfectly fluffy, tangy, and sweet muffins every time:

Step 1: Prepare Dry Ingredients & Blueberries. In a large mixing bowl, combine your dry ingredients: flour, granulated sugar, baking powder, and salt. Whisk them together thoroughly. Then, gently add the fresh or frozen blueberries to the dry mixture and toss them lightly to coat. This crucial step helps prevent the blueberries from sinking to the bottom of your muffins during baking.

Step 2: Combine Wet Ingredients. In a separate medium bowl, whisk together the wet ingredients until smooth and well combined. This includes eggs, vegetable oil, vanilla extract, sour cream, milk, and your sourdough starter discard. Ensure all liquid ingredients are at room temperature for the best emulsion and batter consistency.

Step 3: Gently Mix Wet and Dry Mixtures. Pour the wet mixture into the bowl with the dry ingredients and blueberry mixture. Using a spatula or wooden spoon, gently fold everything together. Mix just until the flour streaks have almost disappeared. Be careful not to overmix, as this can lead to tough muffins. A few small lumps are perfectly fine!

Step 4: Fill Muffin Liners & Top. Line a jumbo muffin pan with muffin liners or generously coat with non-stick spray. Using a large cookie scoop or a spoon, fill each muffin liner about ¾ of the way up with your prepared muffin batter. For that signature bakery crunch, generously sprinkle demerara sugar on top of each muffin (this step is optional but highly recommended!).
Bake to Perfection: Preheat your oven to a high temperature of 425°F (220°C). Bake the muffins at this temperature for the initial 6 minutes. This high heat creates a rapid burst of steam, giving your muffins those magnificent, tall tops. After 6 minutes, without opening the oven door, reduce the oven temperature to 375°F (190°C) and continue baking for another 15-20 minutes, or until a toothpick inserted into the center of a muffin comes out clean. The total baking time should be approximately 21-26 minutes.
Once baked, remove the muffin tin from the oven and allow the muffins to rest in the tin for 5 minutes. This helps them set. Then, carefully transfer the warm muffins to a wire rack to cool completely. Enjoy these delightful sourdough discard blueberry muffins as a perfect breakfast, snack, or dessert!
Baking Success: Expert Tips for Sourdough Muffins
Achieving bakery-quality sourdough discard blueberry muffins is easy when you follow these expert tips. These small adjustments can make a big difference in the final outcome of your delicious treats:
- Optimal Oven Rack Placement & Preheat: For the most even baking and perfect muffin tops, always position your oven rack in the center of the oven. More importantly, ensure your oven is fully preheated to the initial 425°F (220°C) before placing the muffins inside. An accurate oven temperature is crucial for the “oven spring” that creates tall muffins. We highly recommend using an inexpensive oven thermometer to verify your oven’s true temperature, as built-in thermostats can often be inaccurate.
- Gentle Handling of Blueberries: When tossing the blueberries in the flour mixture, do so very gently. Over-handling or smashing the blueberries can cause their juices to bleed into the batter, potentially turning your muffins an undesirable greenish-gray hue. A light coating of flour also helps to suspend the berries evenly throughout the muffin, preventing them from sinking to the bottom.
- Precision with Flour Measurement: For the lightest, fluffiest muffins, using a kitchen scale to weigh your flour in grams is paramount. Flour is easily over-measured when using standard measuring cups, leading to an excess of dry ingredients which can result in dense, dry, and crumbly muffins. Weighing ensures consistent and perfect results every time. If you don’t have a scale, be sure to use the “spoon and level” method: lightly spoon flour into your measuring cup, then level it off with a straight edge.
- Avoid Overmixing: Once the wet and dry ingredients are combined, mix just until the flour streaks disappear. Overmixing develops the gluten in the flour, leading to tough, chewy muffins instead of light and tender ones. A few small lumps in the batter are a sign of a perfectly mixed muffin batter.
- Room Temperature Ingredients: Ensure all cold ingredients like eggs, milk, and sour cream are at room temperature. This allows them to emulsify better with the other ingredients, resulting in a smoother, more uniform batter and a more tender final product.
Frequently Asked Questions About Sourdough Blueberry Muffins
Got questions about making these sourdough discard blueberry muffins? We’ve got answers! Here are some common queries to help ensure your baking success:
Sourdough discard refers to the portion of your sourdough starter that you remove before feeding it with fresh flour and water. This is done to maintain a healthy and active starter. Instead of throwing it away, this leftover mixture of flour, water, and natural yeast is still full of flavor and leavening potential, making it a fantastic ingredient for various recipes like these delicious sourdough muffins, pancakes, or crackers. It adds a wonderful depth of flavor and moisture without requiring the discard to be active and bubbly.
Yes, you absolutely can! If you don’t have a sourdough starter or any discard on hand, you can substitute the ½ cup of sourdough discard with a mixture of ¼ cup all-purpose flour and ¼ cup water to maintain the correct batter consistency. While this will yield delicious blueberry muffins, they will lack the distinctive tangy flavor and unique texture that sourdough discard provides. Alternatively, you might find that a local bakery or a fellow baking enthusiast would be happy to share some discard with you!
Demerara sugar is a type of raw cane sugar characterized by its large, coarse crystals and a subtle caramel-like flavor. It’s used as an optional topping on these muffins to create a beautiful, sparkly, and crunchy crust. When baked, the coarse crystals retain their structure, providing a delightful textural contrast to the soft muffin interior. You can often find demerara sugar labeled as “Sugar in the Raw” in most grocery stores, making it easily accessible for that perfect bakery finish.
Coating the blueberries in a small amount of the dry flour mixture is a clever trick to prevent them from sinking to the bottom of the muffins during baking. The flour creates a protective layer that helps the berries adhere to the batter and distribute more evenly throughout each muffin. This ensures every bite contains a burst of blueberry goodness, rather than having all the fruit congregating at the very bottom.
While you technically *can* use an active sourdough starter, it’s generally not recommended for this specific recipe. Active starter might introduce too much leavening, potentially altering the texture and rise of the muffins. Furthermore, active starter can sometimes impart a more pronounced “sourdough” flavor, which might not be desired for a classic blueberry muffin taste. Discard is preferred for its balanced tang and moisture without the strong leavening power.

Storage & Freezing Tips for Freshness
These sourdough discard blueberry muffins are so delicious, they might not last long! But if you happen to have any leftovers, here’s how to keep them fresh and enjoyable:
Room Temperature: For optimal freshness and texture, store your cooled sourdough discard blueberry muffins in an airtight container at room temperature. They will remain wonderfully moist and flavorful for up to 3 to 5 days. Placing a paper towel at the bottom of the container can help absorb any excess moisture and prevent sogginess.
Refrigerator: While technically possible, storing these muffins in the refrigerator is generally not recommended as it can dry them out and affect their texture. They are best enjoyed at room temperature or from the freezer.
Freezer: These muffins freeze exceptionally well, making them perfect for meal prep or enjoying a homemade treat whenever a craving strikes. Once the muffins have cooled completely, individually wrap each blueberry muffin tightly in plastic wrap. Then, place the wrapped muffins in a freezer-safe bag or an airtight container. They will stay fresh in the freezer for up to 1 month. To enjoy, simply thaw them at room temperature or gently reheat them in the microwave or oven until warm.
More Delicious Blueberry & Sourdough Discard Recipes You’ll Love
If you’re a fan of these easy sourdough discard blueberry muffins, you’re in for a treat! Explore more delightful recipes that make the most of fresh berries and your versatile sourdough discard. Expand your baking repertoire with these irresistible options:
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Blueberry Muffin in a Mug
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White Chocolate and Blueberry Muffins
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Lemon Blueberry Blondies with Icing
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Lemon Blueberry Blondies with Icing
-
Glazed Blueberry Cake Donuts

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Thank you for baking with us!
-Kayla
📖 Recipe

The Best Sourdough Discard Blueberry Muffins
Kayla Burton
Pin Recipe
Equipment
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Jumbo Muffin Pan
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Muffin liners
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Mixing bowls
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Measuring spoons
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Kitchen Scale (highly recommended)
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Whisk
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Spatula
Ingredients
- 2 cups (250 g) all-purpose flour weighed in grams (see metric tab) or spooned & leveled
- ¾ cup (150 g) granulated sugar
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1 tablespoon (12 g) baking powder
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½ teaspoon (3 g) salt
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1½ cups blueberries fresh or frozen
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2 large eggs room temperature
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½ cup (118.29 ml) vegetable oil or other neutral oil
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¼ cup (59.15 ml) whole milk room temperature
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½ cup (120 g) sour cream room temperature
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1½ teaspoons vanilla extract
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½ cup (130 g) sourdough discard room temperature
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¼ cup (50 g) demerara sugar optional, for topping
Instructions
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Preheat your oven to 425°F (220°C). Line a jumbo muffin pan with parchment liners or thoroughly coat it with non-stick spray. Position your oven rack in the center.
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In a large bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt. Add the blueberries and gently toss to coat them evenly with the dry mixture.
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In a separate medium bowl, combine the room temperature eggs, vegetable oil, milk, sour cream, vanilla extract, and sourdough discard. Whisk until all wet ingredients are well combined and smooth.
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Pour the wet ingredient mixture into the large bowl with the dry ingredients. Using a spatula, gently fold the mixture until the flour streaks have almost disappeared. Be careful not to overmix; a few lumps are normal.
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Fill each prepared jumbo muffin liner about ¾ full with the batter. If desired, generously sprinkle demerara sugar on top of each muffin for a crunchy crust.
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Bake the jumbo muffins at 425°F (220°C) for 6 minutes. Without opening the oven door, reduce the oven temperature to 375°F (190°C) and continue baking for another 15-20 minutes, or until a toothpick inserted into the center comes out clean. The total baking time will be approximately 21-26 minutes. Allow muffins to cool in the tin for 5 minutes before transferring to a wire rack to cool completely.
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Notes
Sourdough Discard: This recipe specifically calls for sourdough discard, which is the unfed portion of your sourdough starter. Using discard provides a lovely tang and moisture without the strong leavening action of a fed, active starter. While an active starter can be used in a pinch, it might yield a slightly different texture and a more pronounced sourdough flavor, which might not be ideal for this muffin recipe.
Storage: To keep your muffins at their best, store them in an airtight container at room temperature for up to 3 days. For longer storage, individually wrap each cooled blueberry muffin in plastic wrap, then place them in a freezer-safe bag. They can be frozen for up to 1 month. Thaw at room temperature or warm gently before serving.
Regular Muffins: If you prefer standard-sized muffins, distribute the batter evenly between 12-14 regular muffin liners. Bake these at 375°F (190°C) for approximately 13-18 minutes, or until a toothpick comes out clean.
Mini Muffins: For bite-sized treats, bake 24-28 mini muffins. Preheat your oven to 350°F (175°C) and bake for about 10-15 minutes, or until golden and a toothpick inserted comes out clean.
Nutrition: The provided nutrition information is an estimate calculated per serving. Please note that the calorie accuracy is not guaranteed and can vary based on ingredient brands and exact measurements used.
The provided nutritional information is an estimate per serving. Accuracy is not guaranteed.