Sourdough Blueberry Muffins with Crumb Topping

January 6, 2025 | By Amy Duska If you click on links we provide, we may receive compensation.

This is the best sourdough blueberry muffins recipe! This bakery style blueberry muffin is tender and moist with a thick crumb topping that is crunchy and delicious!

A blueberry muffin in it's wrapper on a plate.


 

We love to use sourdough discard to flavor baked goods. Just like our sourdough morning glory muffins, sourdough banana nut muffins, and our double chocolate sourdough muffins, this blueberry muffin recipe packs a lot of flavor!

Serve these muffins for breakfast, as a midday snack, or even dessert!

This recipe makes 12 large, bakery-style muffins.

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A woman holding a platter of sourdough blueberry muffins.

Step by step instructions

To make the very best, bakery-style muffins you'll need 3 bowls. One for the wet ingredients, one for the dry ingredients, and one for the crumb topping.

  1. Crumb Topping: Prepare the crumb topping by melting the butter and stirring the flour and sugar in with a fork. Make sure the crumbles are kept a large size, so don't over-mix. Set aside.
  2. Preheatย the oven toย 350ยฐF (176ยฐC). Line a 12-count muffin tin with paper liners or grease generously to prevent sticking.
  3. Dry Ingredients: In a large mixing bowlย combineย the flour, sugar, baking soda, baking powder, cornstarch, and salt with a fork.ย Addย the blueberries and toss the mixture to coat.ย Setย aside.
  4. Wet Ingredients: In a medium mixing bowl, whisk the wet ingredients together and then pour into the dry ingredients. Gently stir the mixture until just combined. Don't over-mix the batter.
  5. Spoon the mixture evenly into a 12-count muffin tin and press the crumble topping over the muffin batter.
  6. Bake the muffins for 30-35 minutes or until a toothpick inserted into the center comes out clean.

How to make the best crumb topping

The crumb topping might just be the best part of this recipe! The topping covers the muffins with a layer of buttery sweet and crunchy morsels that take these muffins to another level!

To make the crumble, melt the butter and then use a fork to stir the flour and sugar until it looks like wet chunks. Don't break up the chunks too much, you want them to be large!

After spooning the crumb topping into each muffin, gently press the crumbs into the muffin batter. This will make them adhere to the batter and stay put while the muffins are baking.

A closeup photograph of a plate of sourdough blueberry muffins.

Either fresh or frozen blueberries can be used in this recipe. I like to freeze fresh blueberries before adding them to the muffin batter because they stay more intact during the baking process.

Greek yogurt can be used in place of the sour cream.

Don't have a kitchen scale to measure flour?

Use the scoop and level technique to measure your flour if you do not have a kitchen scale. To do this, use a spoon to fluff up the flour in the bag. Use a spoon to scoop the flour into a measuring cup until it is heaped on top. Take a butterknife and level off the top. This should give you the most accurate measurement for flour.

Because flour is measured by weight in these recipes, if the flour is scooped straight out of the bag with the measuring cup, there will be more flour than is called for in the recipe.

Are you or someone you know looking for a gluten-free flour version? Red's Reality's gluten free blueberry muffins recipe is easy and delicious!

How to store and freeze

Store the muffins at room temperature, loosely covered, or up to 3 days.

To freeze the muffins, allow them to cool completely. Wrap each one in plastic wrap and insert it into a freezer-safe bag. The muffins can be frozen for up to 3 months.

When you are ready to eat them, allow them to thaw at room temperature. Reheat them in the microwave for 20-second intervals until warm. You can also reheat them in the oven at 300ยฐF (149ยฐC) for 6-10 minutes.

Check out more of our delicious sourdough recipes!

A woman holding a tray of sourdough blueberry muffins.

Sourdough Blueberry Muffins with Crumb Topping Recipe

This recipe for sourdough blueberry muffins makes big, bakery style muffins that are tender and moist. They are baked to perfection with a crunchy, sweet crumb topping that is completely irresistible!
Rate this recipe!
4.97 from 548 votes
Print Pin Recipe
Prep Time: 20 minutes
Cook Time: 30 minutes
Servings: 12
Author: Amy Duska

EQUIPMENT

  • 12 count muffin tin

INGREDIENTS

Dry Ingredients

  • 2 cups (240 g) all purpose flour
  • 1 cup (200 g) granulated sugar
  • 2 teaspoons baking powder
  • ยฝ teaspoon baking soda
  • ยฝ teaspoon salt
  • 1 tablespoon corn starch
  • zest of half a lemon
  • 1 cups (150 g) blueberries (fresh or frozen)

Wet Ingredients

Crumb Topping

  • 3 tablespoons (45 g) butter ( melted)
  • ยฝ cup (100 g) granulated sugar
  • ยฝ cup (60 g) all purpose flour

INSTRUCTIONS

  • Crumb topping: Place the melted butter, flour and sugar in a bowl and use a fork to mix until it becomes a coarse crumble. Set aside.
  • Preheat the oven to 350ยฐF (176ยฐC). Line a 12 count muffin tin with paper liners or grease generously to prevent sticking.
  • Dry ingredients: In a large mixing bowl combine the flour, sugar, baking soda, baking powder, corn starch, lemon zest and salt with a fork. Add the blueberries and toss the mixture to coat. Set aside.
  • Wet ingredients: In a medium mixing bowl, whisk all the wet ingredients until smooth. Pour the wet ingredients into the dry ingredients and stir until just combined. (If the batter is too stiff, add 1-2 tablespoons of water or milk to help thin it down.)
  • Divide the batter evenly into 12 muffins and sprinkle the top with the crumble topping. Make sure to press the crumble, gently, on the top of the batter.
  • Bake for 30-35 minutes or until a toothpick inserted into the center of a muffin comes out clean. Let muffins cool in the tin for 10 minutes before removing to cool on a cooling rack.

NOTES

  • Store the muffins loosely covered, at room temperature, for up to 3 days.
  • Freeze the muffins wrapped in plastic wrap, inserted into a freezer-safe bag for up to 3 months.

Nutrition

Serving: 1muffin | Calories: 322kcal | Carbohydrates: 50g | Protein: 4g | Fat: 12g | Saturated Fat: 7g | Cholesterol: 60mg | Sodium: 204mg | Potassium: 120mg | Fiber: 1g | Sugar: 26g | Vitamin A: 391IU | Vitamin C: 1mg | Calcium: 43mg | Iron: 1mg
4.97 from 548 votes (174 ratings without comment)

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602 Comments

  1. 5 stars
    So delicious! I used orange zest since I didnโ€™t have a lemon and Iโ€™m glad I didnโ€™t leave the zest out! Amazing flavor muffins and I love that they use sourdough discard!

  2. 5 stars
    Huge hit in my house! Thanks for the recipe! Could you sub the granulated sugar for coconut sugar? Trying to use more unrefined sweeteners. If so, would the gram measurements change?

  3. 5 stars
    These are pure evil!!!! Best blueberry muffin Iโ€™ve ever had! I had to add quite a bit of milk to make it wet enough to put in muffin tins. Even at that I was concerned that I didnโ€™t add enough but they are delicious and moist!! So so good!

  4. 5 stars
    Iโ€™ve made these blueberry ones 3x with a little more lemon zest and lemon juice in the wet ingredients plus about 70g of milk added too. SO GOOOODDDD. Huge hit in my household. Then I switched it up and omitted the lemon and blueberries and added 320g of banana to wet ingredients and added about 80g of chocolate chips to the flour. Those were so delicious too - my husbands fav! This recipe is amazing!

  5. 5 stars
    incredible recipe! I made standard and mini muffins using fresh blueberries and they came out absolutely perfect. tons of extra topping so next time I'll double the recipe but not the topping. I froze about half and they are delicious heated in the microwave. thank you!

  6. 5 stars
    After making these delicious blueberry muffins about four times, I decided to try strawberry. Cut up about 3/4 of a pound of strawberries, pretty small, added most into the batter, and a few on top before the crumb topping. Just marvelous! Thank you, Amy! Such a keeper!

  7. 4 stars
    Iโ€™ve made these muffins 3 times & muffins tasted great but batter was very stiff but muffins were heavy. Crumble top was good. Any suggestions to make them lighter? I had to put individual muffins in damp paper towel & heat up at lower power level to freshen up. I followed recipe perfectly.

    1. I add a quarter cup of applesauce to the recipe and maybe 10 g more of flour. They are very moist and really good.

  8. Iโ€™m so excited for this recipe! Do you think these could these be made Ahead and frozen?