Making Lemon Blueberry Sourdough Muffins combines delightful flavors with a comforting texture. These muffins are perfect for enjoying during quiet mornings or cozy weekend breakfasts. Their simplicity means you can whip them up without much fuss, making them a great option for gatherings or just to enjoy at home. With a balance of brightness from lemon and sweet bursts from blueberries, you’ll find comfort in every bite. Let’s get into how to create this easy recipe together.
Why You’ll Love This Lemon Blueberry Sourdough Muffins
These Lemon Blueberry Sourdough Muffins are both uncomplicated and reliable, making them ideal for any day of the week. Their comforting sweetness pairs beautifully with a hint of citrus for a balanced flavor. You can easily incorporate them into your everyday routine, whether for breakfast or a casual snack. Plus, the use of sourdough adds a delightful complexity, elevating these muffins beyond the ordinary.
Kitchen Tools You’ll Need
- Muffin tin
- Mixing bowls
- Whisk
- Rubber spatula
- Sifter
Ingredients
- 55 grams brown sugar (adds moisture and a deep sweetness)
- 50 grams white sugar (balances sweetness)
- 50 grams all-purpose flour (provides structure)
- 1 gram cinnamon (adds warmth)
- Pinch of salt (enhances flavor)
- 57 grams unsalted butter, cold (contributes richness)
- 330 grams all-purpose flour (gives structure and texture)
- 8 grams baking powder (helps muffins rise)
- 3 grams baking soda (adds leavening)
- 30 grams poppy seeds (adds texture and nutty flavor)
- 3 grams salt (enhances overall taste)
- 200 grams sugar (sweetness)
- 10 grams lemon zest (adds bright flavor)
- 250 grams sour cream, room temperature (provides moisture and tang)
- 240 grams sourdough discard (adds flavor and moisture)
- 113 grams unsalted butter, melted (provides moisture and richness)
- 75 grams lemon juice, freshly squeezed (adds brightness)
- 2 eggs (binds ingredients and adds richness)
- 6 grams vanilla extract (enhances sweetness)
- 200 grams fresh blueberries (provides sweetness and burst of juice)
- 30 grams lemon juice, freshly squeezed (adds extra zing)
- 120 grams powdered sugar (for the glaze)

How to Make Lemon Blueberry Sourdough Muffins
Step 1. In a medium bowl, prepare the crumble topping by mixing the brown sugar, white sugar, flour, cinnamon, and a pinch of salt. Cut in the cold butter, working quickly to maintain its chill, mixing until the mixture resembles small crumbs. Once combined, place the bowl in the fridge to keep the topping cool.
Step 2. Begin making the muffins by preheating your oven to 425°F. Grease a muffin tin or line it with paper liners to help release the muffins easily after baking.
Step 3. In a separate bowl, sift together the flour, baking powder, and baking soda. This aerates the dry components and ensures an even distribution of leavening agents. Add in the poppy seeds and salt, whisking until well combined.
Step 4. In another bowl, mix the sugar with lemon zest, allowing the zest’s oils to infuse the sugar. To this mixture, add the sour cream, sourdough discard, melted butter, lemon juice, eggs, and vanilla extract. Stir until you have a smooth mixture with no lumps.
Step 5. Carefully pour the wet ingredients into the bowl with the dry ingredients. Gently mix until just combined, taking care not to overmix, which could result in tough muffins.
Step 6. Once the batter is combined, gently fold in the fresh blueberries. They should be evenly distributed but not crushed, maintaining their shape and the burst of juice they will bring to the muffins.
Step 7. Divide the muffin batter evenly among the prepared muffin cups. Top each muffin with a generous sprinkle of the crumble topping you prepared earlier.
Step 8. Bake the muffins in the preheated oven for 14 to 15 minutes, or until they are golden brown and a toothpick inserted in the center comes out clean. Keep an eye on the color to ensure they don’t overbake.
Step 9. While the muffins are baking, prepare the glaze by mixing the lemon juice with powdered sugar. Adjust the consistency by adding more sugar or juice until it’s pourable but not too runny.
Step 10. Once the muffins are done, remove them from the oven and allow them to cool slightly before drizzling the glaze over each muffin. Serve warm or at room temperature, and enjoy the delightful combination of flavors.

Serving Suggestions
These Lemon Blueberry Sourdough Muffins are versatile and perfect for various occasions. Serve them fresh out of the oven for a delightful breakfast treat or as a sweet addition to brunch gatherings. They also make a tasty afternoon snack alongside a warm beverage. If you have any leftovers, they hold up well for a quick breakfast or as a sweet addition to family meals.
Pro Tips for Best Results
- Aim to keep the butter cold when making the crumble topping; this helps it stay crumbly.
- Don’t overmix the muffin batter; a few lumps are okay. Overmixing can lead to dense muffins.
- Use fresh blueberries for the best flavor and texture; they give a nice juicy burst.
- For the glaze, start with a small amount of lemon juice and adjust as needed for the desired thickness.
- Be sure to check for doneness a little early; ovens can vary, and you want perfectly baked muffins.
Common Mistakes to Avoid
- Overmixing the batter: This can lead to tough muffins. Mixing just until combined is key to keeping a tender texture.
- Skipping the chilling step for the topping: If the butter isn’t cold, the crumble will not hold its shape and may turn into a paste instead of crumbs. Keep it cold for the best texture.
- Not using fresh ingredients: Stale baking powder or baking soda can prevent proper leavening. Always check expiration dates to ensure effectiveness.
- Overbaking the muffins: Keep an eye on them towards the end of baking. When they start to turn golden brown, a toothpick test can help check for doneness without being overdone.
- Ignoring oven temperature: It’s essential to preheat to the correct temperature for the proper rise. A cold oven can lead to flat muffins.
- Using cold sour cream: Make sure your sour cream is at room temperature for better mixing and texture. Cold ingredients can cause the batter to not mix well.
Variations & Substitutions
Feel free to experiment with different flavors by adding nuts for extra crunch or adjusting the lemon zest and juice for more or less zing, depending on your taste. Consider incorporating spices like nutmeg for warmth, or even swap in other berries for a different fruit flavor profile.
Storage & Reheating
For room-temperature storage, these muffins can remain covered for up to two days. If you need to keep them longer, transfer them to the refrigerator for up to a week. To freeze, place the muffins in an airtight container, separating layers with parchment paper, and they can last up to three months. To enjoy, reheat them in the oven or microwave, allowing them to warm through while maintaining their tender texture.
Frequently Asked Questions
Can I make this recipe ahead of time?
Yes, you can prepare the muffin batter ahead of time and store it in the refrigerator for a few hours before baking. This can save time in the morning if you want freshly baked muffins.
How long does it last in the fridge?
These muffins can last in the fridge for about a week when stored in an airtight container. They can be enjoyed cold or gently reheated.
Can I freeze this recipe?
Absolutely! Once cooled, you can freeze these muffins for up to three months. Wrap them individually in plastic wrap, then place them in a freezer bag to keep them fresh.
What can I substitute for one ingredient?
For the sour cream, plain yogurt works well as a substitute; it will provide similar moisture and tanginess.
Why didn’t my recipe turn out as expected?
Common issues include not measuring ingredients accurately, which can alter the batter’s consistency. Ensure you use the correct amounts and check the freshness of your leavening agents for the best results.
Final Thoughts
Making Lemon Blueberry Sourdough Muffins can be a gratifying experience. As you combine each ingredient, you’ll find a comforting rhythm that brings these flavors together beautifully. The final result is a batch of muffins that are not only delicious but also versatile enough for any time of day. Enjoy sharing them with family or savoring a moment alone, knowing this recipe will return to your kitchen time and again.

Lemon Blueberry Sourdough Muffins
Ingredients
For the Crumble Topping
- 55 grams brown sugar adds moisture and a deep sweetness
- 50 grams white sugar balances sweetness
- 50 grams all-purpose flour provides structure
- 1 gram cinnamon adds warmth
- Pinch salt enhances flavor
- 57 grams unsalted butter, cold contributes richness
For the Muffins
- 330 grams all-purpose flour gives structure and texture
- 8 grams baking powder helps muffins rise
- 3 grams baking soda adds leavening
- 30 grams poppy seeds adds texture and nutty flavor
- 3 grams salt enhances overall taste
- 200 grams sugar sweetness
- 10 grams lemon zest adds bright flavor
- 250 grams sour cream, room temperature provides moisture and tang
- 240 grams sourdough discard adds flavor and moisture
- 113 grams unsalted butter, melted provides moisture and richness
- 75 grams lemon juice, freshly squeezed adds brightness
- 2 pieces eggs binds ingredients and adds richness
- 6 grams vanilla extract enhances sweetness
- 200 grams fresh blueberries provides sweetness and burst of juice
- 30 grams lemon juice, freshly squeezed adds extra zing
- 120 grams powdered sugar for the glaze
Instructions
Preparation
- In a medium bowl, prepare the crumble topping by mixing the brown sugar, white sugar, flour, cinnamon, and a pinch of salt. Cut in the cold butter, working quickly to maintain its chill, mixing until the mixture resembles small crumbs. Once combined, place the bowl in the fridge to keep the topping cool.
- Begin making the muffins by preheating your oven to 425°F (220°C). Grease a muffin tin or line it with paper liners to help release the muffins easily after baking.
- In a separate bowl, sift together the flour, baking powder, and baking soda. This aerates the dry components and ensures an even distribution of leavening agents. Add in the poppy seeds and salt, whisking until well combined.
- In another bowl, mix the sugar with lemon zest, allowing the zest's oils to infuse the sugar. To this mixture, add the sour cream, sourdough discard, melted butter, lemon juice, eggs, and vanilla extract. Stir until you have a smooth mixture with no lumps.
Mixing
- Carefully pour the wet ingredients into the bowl with the dry ingredients. Gently mix until just combined, taking care not to overmix, which could result in tough muffins.
- Once the batter is combined, gently fold in the fresh blueberries. They should be evenly distributed but not crushed, maintaining their shape and the burst of juice they will bring to the muffins.
Baking
- Divide the muffin batter evenly among the prepared muffin cups. Top each muffin with a generous sprinkle of the crumble topping.
- Bake the muffins in the preheated oven for 14 to 15 minutes, or until they are golden brown and a toothpick inserted in the center comes out clean. Keep an eye on the color to ensure they don’t overbake.
- While the muffins are baking, prepare the glaze by mixing the lemon juice with powdered sugar. Adjust the consistency by adding more sugar or juice until it’s pourable but not too runny.
- Once the muffins are done, remove them from the oven and allow them to cool slightly before drizzling the glaze over each muffin. Serve warm or at room temperature, and enjoy the delightful combination of flavors.



