Glazed Sourdough Lemon Poppy Seed Muffins
When I have sourdough discard sitting in my refrigerator, I love finding new ways to turn it into something my family can enjoy. These sourdough lemon poppy seed muffins are one of those recipes that feels both simple and a little nostalgic, with bright lemon flavor, a soft tender crumb, and just enough sweetness from the glaze.
The combination of sourdough discard, creamy ricotta cheese, and fresh lemon zest creates a muffin that is light, flavorful, and perfect alongside a cup of coffee or tea. They are an easy way to bring a little more homemade goodness into your kitchen while using ingredients you may already have on hand.

Reader Summary
In this post, you’ll find:
- Why you’ll love these sourdough discard muffins
- The ingredients needed to make soft and tender lemon poppy seed muffins
- Step-by-step instructions for making the perfect muffin batter
- How to use freshly milled soft white wheat flour in this recipe
- Substitutions and variations to customize your muffins
- Tips for getting bakery-style muffins every time
- Frequently asked questions about sourdough muffins, flour substitutions, and storage
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If you enjoy baking with sourdough discard, you’ll find even more ways to use your starter in my collection of sourdough recipes. From staples like sandwich bread and homemade Pasta to sweet treats like chocolate chip cookies and cinnamon rolls, these recipes are perfect for bringing more homemade goodness into your kitchen!
Why You’ll Love These Sourdough Lemon Poppy Seed Muffins
These sourdough lemon poppy seed muffins are the perfect way to turn leftover sourdough discard into something fresh, flavorful, and worth making again and again. The combination of tangy sourdough discard, creamy ricotta cheese, and fresh lemon zest creates a soft, tender muffin with a bright citrus flavor and just the right amount of sweetness from the lemon glaze.
I also love how versatile this recipe is. You can make these muffins with traditional all-purpose flour or freshly milled soft white wheat flour, prepare them the same day, or let the batter rest overnight for a longer sourdough fermentation. They are simple enough for a weekday breakfast but special enough to serve at brunch or share with friends.
Ingredients for Sourdough Lemon Poppy Seed Muffins
For the Muffins
Butter: I use unsalted butter that has been softened to room temperature. Room-temperature butter creams together with the sugar much more easily, creating the right texture for the muffin batter.
Sugar: Granulated sugar adds sweetness and helps create a tender muffin crumb.
Egg: A large egg helps bind the ingredients together and adds structure.
Sourdough discard: Use room-temperature sourdough discard for easier mixing. You can use discard straight from your refrigerator, but allowing it to warm slightly will help it incorporate more smoothly.
Ricotta cheese: Ricotta is the secret ingredient that makes these muffins extra soft and tender. Plain Greek yogurt can also be substituted if needed.
Lemon zest: Fresh lemon zest gives these muffins their bright, citrus flavor. I recommend using fresh lemons whenever possible because the zest contains the oils that create that wonderful lemon aroma.
Vanilla extract: Adds warmth and balances the bright lemon flavor.
Milk: I use almond milk, but regular dairy milk works as well.
Flour: You can use all-purpose flour or freshly milled soft white wheat flour. Both work beautifully in this recipe.
Baking powder and baking soda: These help the muffins rise and create a light texture.
Fine sea salt: Salt enhances all of the flavors and balances the sweetness.
Poppy seeds: Classic poppy seeds add texture and that familiar lemon poppy seed flavor.
For the Lemon Glaze
- Powdered sugar
- Fresh lemon juice
- Melted butter
The simple lemon glaze adds just the right amount of sweetness and extra citrus flavor without overpowering the muffin.

Instructions
These sourdough lemon poppy seed muffins come together easily with a simple muffin method. The most important thing is to avoid overmixing the batter once the wet and dry ingredients come together. A thick batter is exactly what you want for soft, tender muffins.
Prepare the Muffin Batter
Start by preheating your oven to 350°F. Line a 12-count muffin pan with paper liners or lightly grease the muffin cups.
In a medium bowl, whisk together the flour, baking powder, baking soda, sea salt, and poppy seeds. Set the dry ingredients aside.

In the bowl of a stand mixer, add the room-temperature butter and sugar. Cream together until light and fluffy. This step helps create a tender muffin texture by incorporating air into the batter.
Add the egg and mix until combined. Then add the room-temperature sourdough discard, ricotta cheese, milk, lemon zest, and vanilla extract. Mix until the wet ingredients are smooth and fully incorporated.

Add the wet ingredients to the dry ingredients and gently fold together with a spatula until just combined. Be careful not to overmix. Overmixing can create dense, chewy muffins instead of the soft, bakery-style texture we are looking for.

The batter will be thick, and that is completely normal.
Rest the Batter Before Baking
For the best flavor and texture, allow the muffin batter to rest for about 30 minutes before baking.
This short rest gives the sourdough discard time to hydrate the flour and allows the flavors to develop.
If you prefer a longer fermentation option, you can cover the bowl and place the batter in the refrigerator overnight. This is a great option if you want to prep your muffins ahead of time or incorporate a longer sourdough fermentation into your baking routine.
Bake the Muffins
Once the batter has rested, divide it evenly between the 12 muffin cups.
Bake for 20 to 25 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
If you chilled the batter overnight, it will be thicker and colder when you scoop it into the muffin pan. You do not need to bring it back to room temperature before baking. Simply scoop and bake as directed. The muffins may need a few additional minutes in the oven, so rely on the toothpick test rather than the clock.
Transfer the muffins to a cooling rack and allow them to cool completely before adding the glaze.


How to Make the Lemon Glaze
The lemon glaze is what brings these muffins together with an extra pop of fresh citrus flavor. It is simple to make but adds that beautiful finishing touch that makes these muffins feel bakery-worthy.
Before mixing the glaze, I recommend sifting your powdered sugar. This small step makes a big difference because powdered sugar can sometimes have small clumps that are difficult to smooth out once liquid is added.
In a small bowl, combine:
- 1 cup powdered sugar
- 2 tablespoons fresh lemon juice
- 1 tablespoon melted butter
Stir until smooth. It may take a minute or two for the melted butter to fully incorporate, but keep stirring until the glaze becomes creamy and pourable.
Once the muffins are completely cooled, drizzle the glaze over the tops. You can also dip the tops of the muffins directly into the glaze if you prefer a thicker coating.
Personally, I love the look of a simple drizzle. It adds a little homemade charm and makes each muffin feel unique.




Glazed Sourdough Lemon Poppy Seed Muffins
Ingredients
Wet Ingredients
- 8 tbsp (1 stick) unsalted butter room temperature
- 1 cup sugar
- 1 large egg
- 1/2 cup sourdough starter discard
- 1 cup ricotta cheese (or plain Greek yogurt)
- Zest of 1 large lemon (or 2 small lemons)
- 1 tsp vanilla extract
- 1/2 cup milk of choice
Dry ingredients
- 2 cups all-purpose flour or freshly milled soft white wheat flour
- 2 tsp baking powder
- 1/2 tsp baking soda
- 1 tsp fine sea salt
- 1 1/2 tbsp poppy seeds
Lemon Glaze
- 1 cup powdered sugar
- 2 tbsp lemon juice
- 1 tbsp melted butter
Instructions
- Preheat oven to 350°F. Line a 12-count muffin pan with liners or lightly grease the muffin cups.
- In a medium bowl, whisk together the flour, baking powder, baking soda, salt, and poppy seeds. Set aside.
- In a stand mixer or large mixing bowl, cream the room-temperature butter and sugar together until light and fluffy.
- Add the egg and mix until combined. Add the sourdough discard, ricotta cheese, milk, lemon zest, and vanilla extract. Mix until smooth.
- Add the wet ingredients to the dry ingredients and gently fold together with a spatula until just combined. Be careful not to overmix. The batter will be thick.
- Allow the batter to rest for 30 minutes before baking, or cover and refrigerate overnight for a longer sourdough fermentation.
- Divide the batter evenly between the 12 muffin cups. Bake for 20–25 minutes, or until a toothpick inserted in the center comes out clean.
- Transfer muffins to a cooling rack and allow them to cool completely. To make the glaze, sift powdered sugar into a bowl, then add lemon juice and melted butter. Stir until smooth. Drizzle over cooled muffins before serving.
Substitutions and Variations
One of my favorite things about homemade muffins is how easy they are to adapt based on what you have available in your kitchen.
Can I Use All-Purpose Flour Instead of Freshly Milled Flour?
Yes! If you do not mill your own grains, all-purpose flour works beautifully in this recipe. You will still get soft, tender muffins with plenty of lemon flavor.
Can I Use Greek Yogurt Instead of Ricotta?
Yes! Plain Greek yogurt is a great substitute for ricotta cheese in this recipe.
The ricotta creates a rich, tender texture, but Greek yogurt provides a similar moisture and tanginess. If you already keep Greek yogurt in your refrigerator, it is an easy swap.
Can I Use Active Sourdough Starter Instead of Discard?
Yes, you can use active sourdough starter if that is what you have available. Since this recipe also uses baking powder and baking soda for leavening, the muffins do not rely solely on sourdough fermentation to rise.
However, using sourdough discard is a great way to add flavor while reducing food waste.
Can I Add More Lemon Flavor?
Absolutely! If you love a strong lemon flavor, you can add a little extra lemon zest or increase the amount of glaze on top.
Fresh lemon zest is the best way to intensify the lemon flavor because the oils in the peel provide that bright citrus aroma.

How to Serve Sourdough Lemon Poppy Seed Muffins
These muffins are wonderful served warm with a cup of coffee or tea for a slow morning breakfast, but they are also versatile enough for many occasions.
Enjoy them:
- Alongside a homemade breakfast spread
- As an afternoon snack with coffee or tea
- Packed into lunch boxes
- Served at brunch gatherings
- As a simple homemade treat for guests
I especially love recipes like this because they feel special without requiring a complicated process. A fresh lemon muffin, a warm drink, and a quiet moment can be such a simple pleasure.
Tips for the Best Sourdough Lemon Poppy Seed Muffins
Use Room Temperature Ingredients
Room-temperature butter, sourdough discard, and dairy ingredients mix together more easily and create a smoother batter.
Cold ingredients can cause the butter to seize up, making it harder to achieve an even texture.
Do Not Overmix the Batter
Once the wet and dry ingredients are combined, mix only until you no longer see streaks of flour.
A few small lumps are perfectly fine. Overmixing develops gluten and can lead to dense muffins.
Let the Batter Rest
Even a short 30-minute rest helps improve the texture and flavor of these sourdough discard muffins.
If you have time, the overnight refrigerator option is a great way to prepare them ahead.
Allow Muffins to Cool Before Glazing
It can be tempting to drizzle the lemon glaze over warm muffins, but waiting until they are cooled helps the glaze stay thick and beautiful instead of melting into the muffin.
Do Not Skip the Lemon Zest
The lemon juice adds acidity and flavor to the glaze, but the zest is where so much of that fresh lemon aroma comes from.

Using Freshly Milled Flour for Sourdough Lemon Poppy Seed Muffins
One of my favorite parts of baking from scratch is learning how different ingredients change the final result. Freshly milled flour is one of those ingredients that can completely transform the way you think about baking.
For these sourdough lemon poppy seed muffins, I used freshly milled soft white wheat flour. Soft white wheat is a wonderful choice for muffins, cakes, cookies, and other tender baked goods because it has a lower protein content than hard wheat varieties. This helps create a lighter texture while still giving you all the benefits of grinding your own grains at home.
When you mill flour fresh, you are using the whole grain, including the bran and germ, which are removed during the processing of many commercial flours. Freshly milled flour also has a naturally sweet, nutty flavor that adds another layer of depth to homemade baked goods.
If you are new to milling your own flour, muffins are a great recipe to start with. They do not require the same level of gluten development as bread, making them a little more forgiving while you learn how fresh flour behaves.
That said, you absolutely do not need a grain mill to make these muffins. High-quality all-purpose flour works beautifully and will still give you a soft, tender muffin with plenty of lemon flavor.
I personally love using my NutriMill grain mill because it makes milling fresh flour simple enough to incorporate into everyday baking.

Frequently Asked Questions
Can I make sourdough lemon poppy seed muffins with discard straight from the refrigerator?
Yes, you can use sourdough discard straight from the refrigerator, but I prefer using room-temperature discard for this recipe. It mixes more easily with the other ingredients and helps create a smoother batter.
If your discard is cold, simply let it sit on the counter for a little while before mixing, or allow a little extra time for the batter to come together.
Do sourdough discard muffins taste sour?
No, these muffins do not have a strong sourdough flavor. The sourdough discard adds a subtle tang and depth that balances the sweetness of the lemon and glaze.
Because this recipe includes sugar, ricotta cheese, and fresh lemon, the overall flavor is bright, sweet, and balanced.
Can I ferment sourdough muffin batter overnight?
Yes! This recipe works well with an overnight fermentation option.
After mixing the batter, cover the bowl and place it in the refrigerator overnight. The next day, scoop the chilled batter into your muffin pan and bake as directed.
The batter will be thicker after chilling, but you do not need to let it come back to room temperature before baking.
How do I store sourdough lemon poppy seed muffins?
Store these muffins in an airtight container at room temperature for up to 3 days.
For longer storage, place them in the refrigerator for up to a week. Because these muffins contain ricotta cheese, refrigeration can help maintain freshness.
Allow refrigerated muffins to come to room temperature or warm them slightly before serving for the best texture.
Can I freeze sourdough lemon poppy seed muffins?
Powdered sugar can contain small clumps that are difficult to break apart once liquid is added. Taking a few extra seconds to sift it creates a smoother, prettier glaze.
Yes! These muffins freeze beautifully.
Allow the muffins to cool completely before placing them in a freezer-safe container or bag. They can be frozen for up to 3 months.
For the best results, freeze them without the glaze and add fresh glaze after thawing. However, glazed muffins can also be frozen if needed.
Why are my sourdough muffins dense?
Dense muffins are usually caused by overmixing the batter or measuring flour incorrectly.
When mixing the wet and dry ingredients together, stir gently and stop as soon as the flour is incorporated. Too much mixing develops gluten and can make muffins heavy.
If using freshly milled flour, make sure your flour is milled finely enough for tender baked goods.
Can I leave out the poppy seeds?
Yes! If you prefer a simple lemon muffin, you can leave out the poppy seeds without making any other changes to the recipe.
You can also replace them with another mix-in, such as blueberries, if you want to create a different variation.
Why did my lemon glaze turn lumpy?
The most common reason for a lumpy lemon glaze is powdered sugar that was not sifted before mixing.

Final Thoughts
I love recipes that bring together the old-fashioned practice of baking from scratch with the practicality of everyday life, and these sourdough lemon poppy seed muffins are exactly that.
They are a wonderful way to use sourdough discard, experiment with freshly milled flour, and create something homemade that your family will actually enjoy.
Whether you make them with all-purpose flour or freshly milled soft white wheat, add the lemon glaze or enjoy them plain, I hope these muffins become a recipe you return to again and again.
There is just something special about pulling a homemade treat from your own kitchen and knowing exactly what went into it.
Happy baking, friend!
XO, Bri
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