Fluffy Blueberry Muffins Streusel

Featured in: Home Kitchen Staples

Enjoy fluffy muffins packed with fresh blueberries and a crunchy streusel topping that adds a perfect buttery contrast. The batter balances tangy yogurt and vanilla with just the right amount of sweetness. Streusel crumbs provide texture and a touch of cinnamon warmth. They bake golden in about 20 minutes and cool to a tender crumb, ideal for breakfast or an afternoon treat. For extra brightness, a hint of lemon zest can be added. Serve warm or at room temp with coffee or tea.

Updated on Sat, 20 Dec 2025 13:54:00 GMT
Golden-brown, fluffy homemade blueberry muffins with a crunchy streusel topping, perfect for breakfast. Save
Golden-brown, fluffy homemade blueberry muffins with a crunchy streusel topping, perfect for breakfast. | cozymsemen.com

The smell of butter and cinnamon pulled my roommate out of bed one Saturday morning, still half asleep and asking what bakery I'd ordered from. I hadn't ordered anything. I was just trying to use up a pint of blueberries before they went sad in the fridge. That batch of muffins, with their crackly sugar tops and soft, berry-studded crumb, became the recipe I've made more than any other since.

I brought a batch to a potluck brunch once, still warm in a towel-lined basket. They were gone in minutes. One friend asked if I'd trained at a culinary school. I laughed and told her I just followed the recipe and didn't overthink it. Sometimes that's all it takes.

Ingredients

  • All-purpose flour: The backbone of the muffin, giving structure without making them dense or heavy.
  • Baking powder and baking soda: This duo creates the perfect rise and that signature domed top you see at bakeries.
  • Unsalted butter: Melted and cooled, it keeps the crumb moist and adds a rich, buttery flavor throughout.
  • Granulated sugar: Sweetens the muffins just enough to let the blueberries shine without tasting like cake.
  • Eggs: Room temperature eggs blend smoothly and help the batter come together with a light, airy texture.
  • Vanilla extract: A little goes a long way, adding warmth and depth to every bite.
  • Whole milk: The fat content keeps the muffins tender and prevents them from drying out.
  • Sour cream or plain yogurt: This is the secret to bakery-level moistness and a slight tang that balances the sweetness.
  • Blueberries: Fresh or frozen both work, but tossing them in a bit of flour keeps them from sinking to the bottom.
  • Brown sugar (for streusel): Packed tight, it gives the topping a caramel-like sweetness and helps it clump beautifully.
  • Cold butter (for streusel): Cubed and worked in with a fork, it creates those buttery, crumbly bits that make the top irresistible.
  • Cinnamon: Just a hint in the streusel adds warmth without overpowering the berries.

Instructions

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Get Ready:
Preheat your oven to 400°F and line your muffin tin with paper liners. The high heat is what gives you those gorgeous domed tops.
Make the Streusel:
In a small bowl, mix the flour, brown sugar, and cinnamon, then cut in the cold butter with a fork until it looks like wet sand. Pop it in the fridge so it stays cold and crumbly.
Mix the Dry Ingredients:
Whisk together the flour, baking powder, baking soda, and salt in a medium bowl. This ensures everything is evenly distributed before it meets the wet ingredients.
Combine the Wet Ingredients:
In a large bowl, whisk the melted butter and sugar until smooth, then beat in the eggs one at a time. Stir in the vanilla, milk, and sour cream until the mixture is creamy and unified.
Bring It Together:
Gently fold the dry ingredients into the wet mixture with a spatula, stopping as soon as you don't see streaks of flour. Overmixing is the enemy of tender muffins.
Add the Blueberries:
Toss the blueberries with a tablespoon of flour, then fold them into the batter carefully. The flour coating helps them stay suspended instead of sinking.
Fill and Top:
Divide the batter evenly among the muffin cups, filling each about three-quarters full. Sprinkle a generous amount of streusel on top of each one.
Bake:
Slide the tin into the oven and bake for 20 to 22 minutes, until a toothpick comes out clean and the tops are golden and crackly. Your kitchen will smell like a dream.
Cool:
Let the muffins rest in the tin for 5 minutes, then move them to a wire rack. This keeps the bottoms from getting soggy.
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Freshly baked homemade blueberry muffins, their tops piled high with buttery streusel, ready to enjoy. Save
Freshly baked homemade blueberry muffins, their tops piled high with buttery streusel, ready to enjoy. | cozymsemen.com

I made these the morning my nephew visited for the first time. He ate two, then asked if he could take some home in his backpack. Watching him wrap them carefully in a napkin, I realized that's what a good recipe does. It turns into a moment you both remember.

Storing and Freezing

These muffins keep beautifully at room temperature in an airtight container for up to three days. If you want to freeze them, let them cool completely, then wrap each one in plastic wrap and store them in a freezer bag for up to three months. I like to thaw them on the counter or warm them in the microwave for about 20 seconds. They taste like you just baked them.

Flavor Variations

Once you've made these a few times, try stirring in a teaspoon of lemon zest for a bright, citrusy twist. You can also swap the blueberries for raspberries, chopped strawberries, or even chocolate chips if you're feeling indulgent. I've added a handful of chopped pecans to the streusel before, and it was a hit. The base recipe is forgiving, so don't be afraid to make it your own.

Serving Suggestions

These muffins are perfect on their own, but they're even better with a pat of butter melted on top while they're still warm. I love serving them with strong coffee or a pot of Earl Grey tea. They also make a thoughtful gift when you wrap them up in parchment and tie them with string.

  • Serve them at brunch with scrambled eggs and fresh fruit for a complete spread.
  • Pack them in lunchboxes or take them on road trips, they travel incredibly well.
  • Warm one up and top it with a dollop of whipped cream or vanilla ice cream for an easy dessert.

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Close-up of moist homemade blueberry muffins, showcasing juicy berries and the sweet streusel crumble. Save
Close-up of moist homemade blueberry muffins, showcasing juicy berries and the sweet streusel crumble. | cozymsemen.com

Every time I make these, I'm reminded that the best recipes aren't complicated. They're just honest, a little sweet, and worth getting out of bed for.

Recipe FAQs

How do I keep blueberries from sinking?

Toss the blueberries in a tablespoon of flour before folding them into the batter. This helps suspend them evenly during baking.

Can I substitute sour cream with yogurt?

Yes, plain Greek yogurt works well as a substitute, maintaining moisture and a slight tang in the muffins.

What makes the streusel topping crunchy?

The mixture of cold butter, brown sugar, flour, and cinnamon cut into coarse crumbs creates a buttery, crisp texture once baked.

Can frozen blueberries be used?

Frozen blueberries can be used straight from the freezer without thawing, preserving the batter's texture and color.

What is the ideal baking temperature and time?

Bake at 400°F (200°C) for 20 to 22 minutes until the tops are golden and a toothpick inserted comes out clean.

Fluffy Blueberry Muffins Streusel

Tender muffins filled with blueberries and topped with a buttery, crunchy streusel.

Prep Time
15 min
Time to Cook
22 min
Total Duration
37 min
By Cozy Msemen Daniel Crawford


Skill Level Easy

Cuisine American

Output 12 Portions

Diet Info Meat-Free

What You Need

Muffins

01 2 cups all-purpose flour
02 2 teaspoons baking powder
03 1/2 teaspoon baking soda
04 1/2 teaspoon salt
05 1/2 cup unsalted butter, melted and cooled
06 3/4 cup granulated sugar
07 2 large eggs, room temperature
08 1 teaspoon vanilla extract
09 1/2 cup whole milk
10 1/2 cup sour cream or plain yogurt
11 1 1/2 cups fresh or frozen blueberries (do not thaw if frozen)

Streusel Topping

01 1/3 cup all-purpose flour
02 1/3 cup packed light brown sugar
03 1/4 teaspoon ground cinnamon
04 1/4 cup unsalted butter, cold and cubed

How-To Steps

Step 01

Preheat Oven and Prepare Pan: Preheat the oven to 400°F. Line a 12-cup muffin tin with paper liners or grease thoroughly.

Step 02

Make Streusel Topping: Combine flour, brown sugar, and cinnamon in a small bowl. Cut in the cold butter with a fork or pastry cutter until the mixture resembles coarse crumbs. Chill until ready to use.

Step 03

Mix Dry Ingredients: Whisk together flour, baking powder, baking soda, and salt in a medium bowl.

Step 04

Combine Wet Ingredients: In a large bowl, whisk melted butter and sugar until blended. Beat in eggs one at a time, then stir in vanilla, milk, and sour cream until smooth.

Step 05

Incorporate Dry Ingredients: Gently fold the dry mixture into the wet ingredients just until combined, avoiding overmixing.

Step 06

Add Blueberries: Toss blueberries with one tablespoon flour and gently fold into the batter.

Step 07

Fill Muffin Cups and Add Streusel: Divide batter evenly among muffin cups and sprinkle each generously with streusel topping.

Step 08

Bake: Bake for 20 to 22 minutes until a toothpick inserted into the center comes out clean and tops are golden.

Step 09

Cool: Let muffins cool in the pan for 5 minutes before transferring to a wire rack to cool completely.

Tools Needed

  • 12-cup muffin tin
  • Mixing bowls
  • Whisk
  • Measuring cups and spoons
  • Fork or pastry cutter
  • Wire cooling rack

Allergy Details

Please check every ingredient for allergens and reach out to your healthcare provider with concerns.
  • Contains wheat (gluten), dairy, and eggs.
  • May contain tree nuts due to shared facility processing.

Nutrition Info (per serving)

Nutritional info is an estimate. Cozy Msemen recommends asking a professional about your needs.
  • Calories: 245
  • Fats: 11 g
  • Carbohydrates: 33 g
  • Proteins: 3 g