Simple Sourdough Blueberry Muffins

Finding a good use for that sourdough discard sitting in your fridge can feel like a puzzle. You know you should use it instead of tossing it, but most mornings you’re too busy getting everyone out the door to deal with feeding your starter, let alone baking something from scratch.

That’s where these sourdough blueberry muffins come in handy. They give your discard a purpose, taste like something from a bakery, and come together easily enough for a weekend baking session that’ll set you up with breakfast for days.

What Kind of Blueberries Should I Use?

Fresh or frozen blueberries both work great in these sourdough muffins, so use whatever you have on hand. If you’re using frozen blueberries, don’t bother thawing them first – just toss them straight into the batter while they’re still frozen to prevent them from turning your muffins purple. Fresh blueberries will give you a slightly firmer texture and burst of juice when you bite into them, while frozen ones tend to be a bit softer after baking. Whichever you choose, try to pick berries that are roughly the same size so they distribute evenly throughout your muffins.

Options for Substitutions

These muffins are pretty forgiving, so here are some swaps you can make if needed:

• Sourdough discard: Don’t have sourdough discard? You can replace it with an equal amount of buttermilk or plain yogurt. The muffins will still turn out moist and tasty, just without that subtle tangy flavor.
• Sour cream: Greek yogurt or regular plain yogurt works great as a substitute. You can also use buttermilk, though your muffins might be slightly less rich.
• Butter: You can swap this with vegetable oil or melted coconut oil in equal amounts. Just note that butter gives these muffins their rich flavor, so the taste will be a bit different.
• Fresh blueberries: Frozen blueberries work just fine – don’t bother thawing them first, just toss them in frozen to prevent them from turning your batter purple. You can also try raspberries or chopped strawberries for a different berry flavor.
• All-purpose flour: You can substitute up to half the flour with whole wheat flour for a heartier muffin, but don’t replace all of it or they’ll turn out dense.

Watch Out for These Mistakes While Baking

The biggest mistake when making sourdough blueberry muffins is overmixing the batter, which activates too much gluten and creates tough, dense muffins instead of light and fluffy ones – stop stirring as soon as you no longer see dry flour streaks, even if the batter looks a bit lumpy.

Another common error is skipping the two-temperature baking method, since starting at 425°F helps the muffins rise with nice domed tops, while lowering to 350°F ensures they bake through without burning.

To keep your blueberries from turning the batter purple and sinking to the bottom, toss them with a tablespoon of flour from your measured amount before folding them in gently at the very end.

Finally, resist the urge to pull muffins from the tin right away – letting them cool for the full 10 minutes prevents them from falling apart and helps them release cleanly from the liners.

What to Serve With Sourdough Blueberry Muffins?

These muffins are perfect for breakfast or brunch alongside a hot cup of coffee or tea. I love serving them with scrambled eggs and crispy bacon for a complete morning meal, or you can keep things simple with just some butter and jam on the side. They also make a great afternoon snack with a glass of cold milk or a fruit smoothie. If you’re hosting brunch, set out a spread with fresh fruit salad, yogurt, and maybe some breakfast sausage links to round out the table.

Storage Instructions

Store: Keep your sourdough blueberry muffins in an airtight container at room temperature for up to 3 days. They’ll stay moist and delicious, especially if you toss a paper towel in the container to absorb any extra moisture. For longer storage, pop them in the fridge where they’ll last about a week.

Freeze: These muffins are perfect for freezing! Let them cool completely, then wrap each one individually in plastic wrap and place them all in a freezer bag. They’ll keep for up to 3 months, which is great when you want a quick breakfast or snack.

Enjoy: To enjoy a frozen muffin, just let it thaw at room temperature for about an hour, or microwave it for 20-30 seconds. If you want that fresh-baked feel, warm it in a 350°F oven for about 5 minutes. The blueberries get nice and jammy when warmed up!

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 2100-2250
• Protein: 23-27 g
• Fat: 70-80 g
• Carbohydrates: 345-370 g

Ingredients

For the dry mix:

• 2 cups all-purpose flour
• 1.25 cups sugar
• 2 tsp baking powder
• 0.5 tsp baking soda
• 0.75 tsp salt
• 0.25 tsp ground nutmeg

For the wet batter:

• 0.5 cup butter (melted and cooled to room temperature)
• 0.5 cup sourdough discard
• 0.75 cup sour cream
• 1 egg (room temperature, about 70°F)
• 1.5 tsp vanilla extract
• 0.5 tsp lemon zest

For the fold-in and topping:

• 1.5 cups blueberries (gently tossed in a spoonful of flour to prevent sinking)
• 1 tbsp turbinado sugar

Step 1: Prepare the Mise en Place and Preheat

• muffin tin and paper liners

Preheat your oven to 425°F and line a 12-cup muffin tin with paper liners.

While the oven heats, gather all your ingredients and ensure the egg, butter, and sour cream are at room temperature—this helps them emulsify properly with the sourdough discard for a tender crumb.

I find that room-temperature ingredients mix more smoothly and create a better texture in the finished muffins.

Step 2: Combine Dry Ingredients

• 2 cups all-purpose flour
• 1.25 cups sugar
• 2 tsp baking powder
• 0.5 tsp baking soda
• 0.75 tsp salt
• 0.25 tsp ground nutmeg

In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and ground nutmeg.

Whisking instead of stirring ensures the leavening agents are evenly distributed throughout the flour, which promotes uniform rise and a consistent crumb structure.

Set this bowl aside.

Step 3: Prepare the Wet Ingredients and Coat the Blueberries

• 0.5 cup butter
• 0.5 cup sourdough discard
• 0.75 cup sour cream
• 1 egg
• 1.5 tsp vanilla extract
• 0.5 tsp lemon zest
• 1.5 cups blueberries
• 1 spoonful all-purpose flour

In a separate bowl, whisk together the melted and cooled butter, sourdough discard, sour cream, room-temperature egg, vanilla extract, and lemon zest until fully combined.

The sourdough adds a subtle tang that makes these muffins special.

While you’re finishing the wet mixture, gently toss the blueberries in a spoonful of flour to coat them lightly—this prevents them from sinking to the bottom during baking.

Step 4: Combine Wet and Dry Ingredients with Blueberries

• dry ingredient mixture from Step 2
• wet ingredient mixture from Step 3
• flour-coated blueberries from Step 3

Pour the wet ingredient mixture from Step 3 into the dry ingredients from Step 2.

Using a spatula or wooden spoon, fold everything together gently just until no streaks of flour remain—do not overmix, as this activates gluten and creates tough, dense muffins.

Fold in the flour-coated blueberries as your final action, being careful not to crush them.

Step 5: Fill Muffin Tin and Top with Sugar

• batter from Step 4
• 1 tbsp turbinado sugar

Divide the batter evenly among the lined muffin cups, filling each about three-quarters full.

Using an ice cream scoop or two spoons makes this much faster and more consistent.

Sprinkle a small pinch of turbinado sugar over the top of each muffin—the coarser crystals create a crunchy, attractive topping that won’t dissolve during baking.

Step 6: Bake at Two Temperatures for Perfect Results

Place the muffin tin in the preheated 425°F oven and bake for 8 minutes to give the muffins a strong initial rise.

After 8 minutes, reduce the oven temperature to 350°F and bake for an additional 12 minutes until a toothpick inserted into the center of a muffin comes out clean or with just a few moist crumbs.

The high-heat start sets the structure quickly, while the lower temperature finish allows the centers to bake through without overbrowning the tops.

Step 7: Cool and Serve

Remove the muffin tin from the oven and let the muffins rest in the tin for 10 minutes—this allows them to set slightly without being fragile.

Transfer the muffins to a wire cooling rack to cool completely.

Serve warm or at room temperature; they’ll stay tender and fresh for up to 2 days when stored in an airtight container.

Simple Sourdough Blueberry Muffins

Delicious Simple Sourdough Blueberry Muffins recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 25 minutes mins

Total Time 35 minutes mins

Servings 12 muffins

Calories 2175 kcal

Ingredients

  

For the dry mix::

• 2 cups all-purpose flour
• 1.25 cups sugar
• 2 tsp baking powder
• 0.5 tsp baking soda
• 0.75 tsp salt
• 0.25 tsp ground nutmeg

For the wet batter::

• 0.5 cup butter (melted and cooled to room temperature)
• 0.5 cup sourdough discard
• 0.75 cup sour cream
• 1 egg (room temperature, about 70°F)
• 1.5 tsp vanilla extract
• 0.5 tsp lemon zest

For the fold-in and topping::

• 1.5 cups blueberries (gently tossed in a spoonful of flour to prevent sinking)
• 1 tbsp turbinado sugar

Instructions

 

• Preheat your oven to 425°F and line a 12-cup muffin tin with paper liners. While the oven heats, gather all your ingredients and ensure the egg, butter, and sour cream are at room temperature—this helps them emulsify properly with the sourdough discard for a tender crumb. I find that room-temperature ingredients mix more smoothly and create a better texture in the finished muffins.
• In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and ground nutmeg. Whisking instead of stirring ensures the leavening agents are evenly distributed throughout the flour, which promotes uniform rise and a consistent crumb structure. Set this bowl aside.
• In a separate bowl, whisk together the melted and cooled butter, sourdough discard, sour cream, room-temperature egg, vanilla extract, and lemon zest until fully combined. The sourdough adds a subtle tang that makes these muffins special. While you're finishing the wet mixture, gently toss the blueberries in a spoonful of flour to coat them lightly—this prevents them from sinking to the bottom during baking.
• Pour the wet ingredient mixture from Step 3 into the dry ingredients from Step 2. Using a spatula or wooden spoon, fold everything together gently just until no streaks of flour remain—do not overmix, as this activates gluten and creates tough, dense muffins. Fold in the flour-coated blueberries as your final action, being careful not to crush them.
• Divide the batter evenly among the lined muffin cups, filling each about three-quarters full. Using an ice cream scoop or two spoons makes this much faster and more consistent. Sprinkle a small pinch of turbinado sugar over the top of each muffin—the coarser crystals create a crunchy, attractive topping that won't dissolve during baking.
• Place the muffin tin in the preheated 425°F oven and bake for 8 minutes to give the muffins a strong initial rise. After 8 minutes, reduce the oven temperature to 350°F and bake for an additional 12 minutes until a toothpick inserted into the center of a muffin comes out clean or with just a few moist crumbs. The high-heat start sets the structure quickly, while the lower temperature finish allows the centers to bake through without overbrowning the tops.
• Remove the muffin tin from the oven and let the muffins rest in the tin for 10 minutes—this allows them to set slightly without being fragile. Transfer the muffins to a wire cooling rack to cool completely. Serve warm or at room temperature; they'll stay tender and fresh for up to 2 days when stored in an airtight container.