A high-protein sweet snack that uses up some sourdough discard? Sign us up! Low-Sugar Blueberry Protein Muffins with Sourdough Discard are moist, rich, and bursting with flavor—making them the perfect treat for breakfast, a quick snack, or even dessert. With blueberries in season, these muffins stand out for their delicious taste and versatility.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- Dry Ingredients
- Wet Ingredients
- How to Make Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Step 1: Preheat the Oven
- Step 2: Prepare the Muffin Tin
- Step 3: Mash the Blueberries
- Step 4: Combine Dry Ingredients
- Step 5: Mix Wet Ingredients
- Step 6: Combine Wet and Dry Mixtures
- Step 7: Spoon Batter into Muffin Tins
- Step 8: Bake the Muffins
- Step 9: Cool Before Serving
- How to Serve Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- For Breakfast
- As a Snack
- For Dessert
- How to Perfect Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Best Side Dishes for Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Reheating Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Frequently Asked Questions
- Can I use frozen blueberries?
- How do I customize my muffins?
- What is sourdough discard?
- How do I ensure my muffins rise properly?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Healthy and Nutritious: Packed with protein from whey powder and fresh blueberries, these muffins provide a wholesome snack.
- Low Sugar Delight: Made with only half a cup of brown sugar, they satisfy your sweet tooth without the extra sugar.
- Easy to Make: With simple steps and common ingredients, anyone can whip these muffins up in no time.
- Perfect for Any Occasion: Whether it’s breakfast on-the-go or an afternoon pick-me-up, these muffins fit the bill.
- Sourdough Starter Usage: Utilize your sourdough discard creatively instead of wasting it.
Tools and Preparation
To bake these delightful muffins, you’ll need a few essential tools. Having the right equipment ensures that your baking experience is smooth and enjoyable.
Essential Tools and Equipment
- Muffin tin
- Mixing bowls
- Whisk
- Fork
- Measuring cups and spoons
Importance of Each Tool
- Muffin tin: Essential for shaping your muffins perfectly while baking.
- Mixing bowls: Allows for easy combining of dry and wet ingredients without mess.
- Whisk: Provides thorough mixing of wet ingredients for a smooth batter.
Ingredients
Dry Ingredients
- 1 3/4 cups all-purpose flour
- 3/4 cup plain whey protein powder
- 1/2 cup brown sugar, packed
- 1/2 teaspoon baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
Wet Ingredients
- 2 cups fresh blueberries, slightly mashed
- 1/2 cup grass-fed butter, room temperature soft
- 1/2 cup sourdough starter, room temperature
- 2 teaspoons vanilla extract
- 1/3 cup whole milk, room temperature
- 2 eggs, room temperature
How to Make Low-Sugar Blueberry Protein Muffins with Sourdough Discard
Step 1: Preheat the Oven
Preheat your oven to 350° F to ensure even cooking. This step is crucial for achieving that perfect muffin rise.
Step 2: Prepare the Muffin Tin
Line a muffin tin with paper liners. This will make it easier to remove the muffins once they are baked.
Step 3: Mash the Blueberries
Using a fork, lightly mash the blueberries. This helps release their juices into the batter while still providing some whole pieces for bursts of flavor.
Step 4: Combine Dry Ingredients
In a medium-large mixing bowl, combine:
1. All-purpose flour
2. Whey protein powder
3. Brown sugar
4. Baking soda
5. Baking powder
6. Salt
7. Mashed blueberries
Mix until evenly distributed.
Step 5: Mix Wet Ingredients
In another bowl, combine:
1. Softened butter
2. Sourdough starter
3. Vanilla extract
4. Whole milk
5. Eggs
Whisk together until well combined.
Step 6: Combine Wet and Dry Mixtures
Gently fold the wet ingredients into the dry mixture until just combined. Be careful not to over-mix; it’s okay if there are some clumps in the batter.
Step 7: Spoon Batter into Muffin Tins
Spoon the batter into the prepared muffin tins until each cavity is about two-thirds full. For an extra pop of flavor, you can top each muffin with additional blueberries if desired.
Step 8: Bake the Muffins
Bake in your preheated oven for about 30 minutes total. Rotate the pan halfway through baking to ensure even cooking.
Step 9: Cool Before Serving
Once baked, allow cooling in the pan for about 15 minutes before transferring them to a wire rack to cool completely.
Enjoy your delicious Low-Sugar Blueberry Protein Muffins with Sourdough Discard!
How to Serve Low-Sugar Blueberry Protein Muffins with Sourdough Discard
These delicious muffins are not just a treat; they can be enjoyed in various ways. Here are some creative serving suggestions to elevate your muffin experience.
For Breakfast
- Pair with yogurt: Serve the muffins alongside a dollop of Greek yogurt for a protein-packed breakfast.
- Enjoy with nut butter: Spread almond or peanut butter on top for added flavor and nutrition.
As a Snack
- With fresh fruit: Serve with sliced bananas or apples to complement the blueberry flavor.
- Drizzle honey: A light drizzle of honey adds natural sweetness and enhances the muffin’s taste.
For Dessert
- Top with whipped cream: Add a spoonful of whipped cream for a delightful dessert option.
- Serve warm: Heat them slightly before serving to bring out their rich flavors.

How to Perfect Low-Sugar Blueberry Protein Muffins with Sourdough Discard
Perfecting these muffins is all about technique and quality ingredients. Follow these tips for the best results.
- Use fresh blueberries: Fresh berries provide better flavor than frozen ones, ensuring your muffins are bursting with freshness.
- Don’t over-mix: Gently combine wet and dry ingredients to maintain a tender texture; over-mixing can lead to dense muffins.
- Room temperature ingredients: Make sure eggs and milk are at room temperature for better incorporation into the batter.
- Check doneness early: Ovens can vary, so start checking the muffins a few minutes before the recommended time for perfect baking.
- Cool properly: Let them cool in the pan for 15 minutes before transferring to a rack to avoid sogginess.
Best Side Dishes for Low-Sugar Blueberry Protein Muffins with Sourdough Discard
Pairing side dishes with your blueberry protein muffins can enhance your meal. Here are some excellent options:
- Greek Yogurt Parfait: Layer Greek yogurt with honey and granola for a nutritious side.
- Fruit Salad: A mix of seasonal fruits adds freshness and balances sweetness.
- Smoothie: A berry smoothie complements the flavors in the muffins while providing extra nutrients.
- Chia Pudding: Creamy chia pudding adds texture and is packed with healthy fats and fiber.
- Oatmeal Bowl: Serve oatmeal topped with nuts and seeds as a hearty side.
- Scrambled Eggs: Pairing scrambled eggs offers a savory contrast, making it perfect for breakfast.
Common Mistakes to Avoid
Baking can be tricky, especially when making Low-Sugar Blueberry Protein Muffins with Sourdough Discard. Here are some common mistakes to watch out for:
- Not measuring ingredients correctly: Accurate measurements are crucial for the right texture and taste. Use a kitchen scale or measuring cups for precision.
- Overmixing the batter: Overmixing can lead to tough muffins. Mix until just combined, leaving small lumps in the batter.
- Using cold ingredients: Cold butter, eggs, and milk can affect how well your muffins rise. Ensure all ingredients are at room temperature before mixing.
- Skipping muffin liners: Not using liners can make muffins stick to the pan. Always line your muffin tin for easy removal.
- Not rotating the pan while baking: Uneven heat can cause inconsistent baking. Rotate the muffin tin halfway through baking for even results.
Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- Keep in the refrigerator for up to 4 days.
Freezing Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Allow muffins to cool completely before freezing.
- Wrap each muffin individually in plastic wrap and place them in a freezer-safe bag.
- Store for up to 3 months in the freezer.
Reheating Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Oven: Preheat to 350° F. Bake for about 10 minutes until warmed through.
- Microwave: Heat one muffin on high for 15-20 seconds, checking if it’s hot enough.
- Stovetop: Place in a skillet over low heat, cover, and warm for about 5 minutes.
Frequently Asked Questions
Here are some commonly asked questions about making Low-Sugar Blueberry Protein Muffins with Sourdough Discard.
Can I use frozen blueberries?
Yes, frozen blueberries can be used! Just add them directly from the freezer without thawing.
How do I customize my muffins?
Feel free to add nuts or swap blueberries for other fruits like raspberries or bananas for a new twist!
What is sourdough discard?
Sourdough discard is the portion of sourdough starter removed before feeding. It adds flavor and moisture to recipes like these muffins.
How do I ensure my muffins rise properly?
Make sure your baking powder and baking soda are fresh. They help create lift during baking!
Final Thoughts
These Low-Sugar Blueberry Protein Muffins with Sourdough Discard are not only delicious but also versatile. Perfect as a breakfast option or a snack, they can be customized with various fruits and nuts. Try this recipe today and enjoy a high-protein treat that makes good use of your sourdough discard!
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📖 Recipe Card
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Low-Sugar Blueberry Protein Muffins with Sourdough Discard
- Total Time: 45 minutes
- Yield: Approximately 12 muffins 1x
Description
Indulge in the delightful taste of Low-Sugar Blueberry Protein Muffins with Sourdough Discard—your new go-to snack for any time of the day! These muffins are moist, rich, and bursting with fresh blueberries, making them an ideal choice for breakfast, a quick snack, or even a guilt-free dessert. With only half a cup of brown sugar and protein from whey powder, you can satisfy your sweet cravings without the extra calories. Plus, this recipe cleverly utilizes sourdough discard, turning what would typically go to waste into a nutritious and delicious treat. Whip up a batch today and enjoy a wholesome snack that’s as versatile as it is tasty!
Ingredients
- 1 3/4 cups all-purpose flour
- 3/4 cup plain whey protein powder
- 1/2 cup brown sugar
- 2 cups fresh blueberries
- 1/2 cup grass-fed butter (softened)
- 2 eggs
- 1/2 cup sourdough starter
Instructions
- Preheat your oven to 350°F and line a muffin tin with paper liners.
- Lightly mash the blueberries with a fork.
- In one bowl, mix together flour, whey protein powder, brown sugar, baking soda, baking powder, salt, and mashed blueberries.
- In another bowl, whisk together softened butter, sourdough starter, vanilla extract, milk, and eggs.
- Fold the wet ingredients into the dry mixture until just combined.
- Spoon the batter into muffin tins until two-thirds full.
- Bake for about 30 minutes or until golden brown and a toothpick comes out clean.
- Allow to cool for 15 minutes in the pan before transferring to a wire rack.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Snack
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 muffin (75g)
- Calories: 170
- Sugar: 6g
- Sodium: 180mg
- Fat: 7g
- Saturated Fat: 4g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 2g
- Protein: 7g
- Cholesterol: 50mg





