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Bright, soft, and full of fresh citrus flavor, these sourdough lemon poppy seed muffins are the perfect way to use up sourdough discard. They have a light, fluffy texture with a gentle tang from the sourdough starter and the classic lemon poppy seed flavor everyone loves.

These muffins come together quickly with simple ingredients and bake into soft, bakery-style muffins with golden tops. The fresh lemon zest and juice give them a bright spring flavor, while the poppy seeds add a subtle crunch.

Whether you’re baking for breakfast, brunch, or a cozy afternoon treat, these sourdough lemon poppy seed muffins are an easy recipe you’ll want to make again and again.

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Why You’ll Love These Muffins

• Soft, fluffy, bakery-style texture
• Fresh lemon flavor in every bite
• Easy way to use sourdough discard
• Ready in about 30 minutes

Tools Needed

• Muffin tin (12-cup)
• Paper muffin liners
• Large mixing bowl
• Whisk
• Rubber spatula or wooden spoon
• Measuring cups and spoons (or kitchen scale)
• Zester (for lemon zest)
• Citrus juicer (optional, for fresh lemon juice)
• Cooling rack
• Toothpick (for testing doneness)

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• Moist Sourdough Lemon Blueberry Muffins
• Sourdough Cinnamon Muffins
• Sourdough Apple Cider Muffins

Ingredients You’ll Need

To make these sourdough lemon poppy seed muffins, you only need a few simple baking ingredients.

Sourdough starter discard
Adds moisture and a subtle tangy flavor.

Milk
Helps create a soft and tender crumb.

Butter
Melted butter adds richness and flavor.

Eggs
Provide structure and help the muffins rise.

Sugar
Sweetens the muffins and balances the lemon flavor.

Fresh lemon zest
Adds bright citrus aroma and flavor.

Fresh lemon juice
Gives the muffins their fresh lemon taste.

Vanilla extract
Enhances the overall flavor.

All-purpose flour
Forms the base of the muffin batter.

Baking powder and baking soda
Help the muffins rise and stay fluffy.

Salt
Balances the sweetness and brings out the flavors.

Poppy seeds
Add a light crunch and classic lemon poppy seed texture.

How to Make Sourdough Lemon Poppy Seed Muffins

These muffins are simple to make and come together in just a few steps.

1. Preheat the oven

Preheat your oven to 375°F and line a muffin tin with paper liners.

2. Mix the wet ingredients

In a large mixing bowl, whisk together the sourdough discard, milk, melted butter, eggs, sugar, lemon zest, lemon juice, and vanilla until smooth.

3. Add the dry ingredients

Add the flour, baking powder, baking soda, salt, and poppy seeds to the bowl.

Stir gently until everything is just combined. Be careful not to overmix the batter so the muffins stay light and tender.

4. Fill the muffin pan

Divide the batter evenly between the muffin cups, filling them about three-quarters full.

5. Bake

Bake the muffins until the tops are lightly golden and a toothpick inserted into the center comes out clean.

Let the muffins cool for a few minutes before transferring them to a cooling rack.

Optional Lemon Glaze

If you love extra lemon flavor, you can drizzle the muffins with a simple lemon glaze.

Mix powdered sugar with fresh lemon juice and a little lemon zest until smooth. Drizzle the glaze over the cooled muffins for a sweet citrus finish.

This step is optional, but it gives the muffins a beautiful bakery-style look and flavor.

Tips for the Best Muffins

For the softest and fluffiest muffins, a few simple tips can help.

Use fresh lemon zest
The zest contains natural lemon oils that add the most flavor.

Don’t overmix the batter
Mix just until the ingredients are combined to keep the muffins light.

Let the muffins cool slightly
This helps them set and makes them easier to remove from the pan.

Variations

This recipe is easy to customize.

Blueberry Lemon Muffins
Add fresh or frozen blueberries to the batter.

Extra Lemon Flavor
Add additional lemon zest for a stronger citrus taste.

Yogurt Muffins
Replace part of the milk with plain yogurt for extra moisture.

Storage

Store the muffins in an airtight container at room temperature for a couple of days.

They also freeze very well. Simply place cooled muffins in a freezer bag and freeze for up to two months. Let them thaw at room temperature before serving.

Frequently Asked Questions

Can I use active sourdough starter?

Yes. Active starter works just as well as sourdough discard in this recipe.

Why add sourdough to muffins?

Sourdough starter adds moisture, flavor, and a slight tang that makes baked goods taste richer.

Can I make these muffins ahead of time?

Yes. They store well for a few days and can also be frozen.

A Perfect Way to Use Sourdough Discard

If you bake sourdough bread regularly, you probably have extra starter discard in your kitchen. Recipes like these muffins are a great way to use it instead of throwing it away.

The sourdough discard adds flavor and moisture while keeping the recipe simple and quick to prepare.