Fluffy Blueberry Muffins Streusel

Featured in: Home Baking & Sweet Recipes

These fluffy, tender muffins showcase juicy blueberries folded gently into a soft batter enriched with sour cream and vanilla. The crowning touch is a buttery streusel topping made with cinnamon and brown sugar, adding a delightful crunch. Baked to golden perfection, these muffins offer a perfect balance of moist crumb and sweet, crumbly topping, ideal for breakfast or a cozy dessert.

Updated on Sat, 20 Dec 2025 13:52:00 GMT
Golden-topped fluffy homemade blueberry muffins with streusel, ready to enjoy with morning coffee. Save to Pinterest
Golden-topped fluffy homemade blueberry muffins with streusel, ready to enjoy with morning coffee. | spoonmargin.com

I started making these muffins on Sunday mornings when I realized the bakery down the street had closed for good. My daughter had been asking for blueberry muffins every weekend, and I figured how hard could it be? The first batch came out lopsided and pale, but she ate three anyway. Now, two years later, I can make them in my sleep, and the streusel topping was a game-changer I stumbled on by accident.

The first time I brought these to a potluck, someone asked if I had gotten up at dawn to go to the fancy bakery across town. I just smiled and said I had a secret recipe, which felt like a small victory. My neighbor now texts me every few weeks asking if I have any extra muffins, and I usually do because I double the batch. There is something deeply satisfying about watching people close their eyes after the first bite.

Ingredients

  • All-purpose flour: This is the backbone of the muffin structure, and I learned the hard way not to pack it into the measuring cup or they turn out dense and heavy.
  • Baking powder and baking soda: The combination gives you that beautiful domed top and light crumb, so make sure yours are fresh or the muffins will barely rise.
  • Unsalted butter: Melted and cooled butter keeps the texture tender without making the batter greasy, and it blends in smoothly without chunks.
  • Granulated sugar: Just enough sweetness to balance the tartness of the blueberries without turning these into cupcakes.
  • Eggs: Room temperature eggs mix in more evenly and help create that bakery-style fluffiness I was chasing.
  • Vanilla extract: A teaspoon might seem small, but it adds a warm background note that makes everything taste more homemade.
  • Whole milk and sour cream: This duo creates a moist crumb that does not dry out by the next day, and the tanginess from the sour cream is subtle but essential.
  • Fresh or frozen blueberries: I use whatever I have on hand, and frozen berries work beautifully as long as you do not thaw them first or they will bleed into the batter.
  • Brown sugar and cinnamon for streusel: The molasses in brown sugar gives the topping a deeper flavor, and cinnamon adds just a hint of warmth without overpowering the berries.
  • Cold butter for streusel: Cubed and cold is the key to getting those big crumbly clusters that crisp up in the oven.

Instructions

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Preheat and prep:
Set your oven to 400 degrees and line your muffin tin with paper liners. I used to skip this step and regretted it every time when the muffins stuck to the pan.
Make the streusel:
Combine the flour, brown sugar, and cinnamon in a small bowl, then use a fork to cut in the cold butter until it looks like wet sand with some pea-sized chunks. Pop it in the fridge so it stays cold and does not melt into the batter when you sprinkle it on top.
Mix the dry ingredients:
Whisk together the flour, baking powder, baking soda, and salt in a medium bowl. This ensures everything is evenly distributed so you do not end up with pockets of baking soda.
Combine the wet ingredients:
In a large bowl, whisk the melted butter and sugar until smooth, then add the eggs one at a time and beat until the mixture looks pale and glossy. Stir in the vanilla, milk, and sour cream until everything is silky and well blended.
Fold it together:
Gently fold the dry ingredients into the wet mixture with a spatula, stirring just until you do not see any more flour streaks. Overmixing will make the muffins tough, so stop as soon as it comes together even if it looks a little lumpy.
Add the blueberries:
Toss the blueberries with a tablespoon of flour to coat them lightly, then fold them into the batter with a gentle hand. This keeps them from sinking to the bottom and creates those perfect bursts of berry in every bite.
Fill and top:
Divide the batter evenly among the muffin cups, filling them almost to the top for those big bakery-style domes. Sprinkle a generous amount of streusel over each one, pressing it in slightly so it does not all fall off when you take a bite.
Bake:
Slide the tin into the oven and bake for 20 to 22 minutes, until the tops are golden and a toothpick comes out clean. The smell will fill your kitchen and make it very hard to wait.
Cool:
Let the muffins cool in the tin for 5 minutes to set, then transfer them to a wire rack. If you try to pull them out too early, they might fall apart in your hands.
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Blend soups, smoothies, sauces, and baby food directly in pots for quick, smooth results.
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A close-up of warm, delicious homemade blueberry muffins featuring a crunchy streusel topping. Save to Pinterest
A close-up of warm, delicious homemade blueberry muffins featuring a crunchy streusel topping. | spoonmargin.com

One Saturday morning, my son walked into the kitchen while I was pulling these out of the oven and said they smelled like the weekend. I think about that every time I make them now. It is funny how a simple muffin can become a marker of time, a small ritual that feels like home. These muffins are not fancy, but they have earned their place on our table.

How to Store and Reheat

I keep these muffins in an airtight container at room temperature for up to three days, and they stay soft and moist without any fuss. If you want to keep them longer, wrap each one individually in plastic wrap and freeze them for up to two months. When I need a quick breakfast, I just pop one in the microwave for 20 seconds, and it tastes like I just baked it. The streusel topping holds up surprisingly well, staying crunchy even after freezing.

Flavor Variations to Try

I have swapped the blueberries for raspberries, blackberries, and even diced strawberries with great results. Adding a teaspoon of lemon zest to the batter gives them a bright, almost springtime flavor that my family requests every April. Once, I stirred in a handful of white chocolate chips along with the berries, and my daughter declared them the best muffins I had ever made. You can also replace the cinnamon in the streusel with a pinch of nutmeg or cardamom if you want to experiment with warmer spices.

Serving Suggestions

These muffins are perfect on their own with a hot cup of coffee, but I have also served them with a smear of cream cheese or a drizzle of honey for brunch. They pair beautifully with fresh fruit salad and scrambled eggs when I am trying to impress weekend guests. Sometimes I split one in half and toast it lightly in a skillet with a little butter, which caramelizes the streusel and makes it even more indulgent.

  • Serve them warm with softened butter for an extra treat.
  • Pack them in lunchboxes or take them on road trips because they travel well and do not fall apart.
  • Set out a basket of these at a brunch and watch them disappear before the coffee is even gone.
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Freshly baked and fragrant homemade blueberry muffins: perfect for brunch or a sweet snack. Save to Pinterest
Freshly baked and fragrant homemade blueberry muffins: perfect for brunch or a sweet snack. | spoonmargin.com

I hope these muffins become a weekend ritual in your kitchen the way they have in mine. There is something quietly joyful about pulling a pan of golden, fragrant muffins from the oven and knowing you made something people will remember.

Recipe FAQs

How do I keep blueberries from sinking in the batter?

Lightly tossing the blueberries in flour before folding them into the batter helps prevent them from sinking during baking.

Can I use frozen blueberries?

Yes, frozen blueberries can be used directly without thawing to maintain their shape and prevent excess moisture.

What gives the streusel topping its crunch?

The mixture of cold butter, brown sugar, flour, and cinnamon cut into coarse crumbs creates the buttery, crunchy streusel texture.

Is sour cream necessary in the batter?

Sour cream adds moisture and tenderness, but plain yogurt can be substituted for a similar effect.

What temperature is best for baking these muffins?

Baking at 400°F (200°C) ensures the muffins rise quickly with a golden exterior and moist interior.

Fluffy Blueberry Muffins Streusel

Tender muffins bursting with berries, topped with a buttery, crunchy streusel.

Prep Time
15 min
Time to Cook
22 min
Overall Time
37 min
Recipe by Zoe Murphy


Skill Level Easy

Cuisine American

Makes 12 Portions

Dietary Notes Suitable for Vegetarians

What You'll Need

Muffin Batter

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

Streusel Topping

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

How to Make It

Step 01

Prepare Oven and Muffin Tin: Preheat oven to 400°F and line a 12-cup muffin tin with paper liners or grease thoroughly.

Step 02

Make Streusel: Combine flour, brown sugar, and cinnamon in a small bowl. Cut in cold butter with a fork or pastry cutter until mixture resembles coarse crumbs. Refrigerate until needed.

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. Add eggs one at a time, beating well after each. Stir in vanilla, milk, and sour cream until smooth.

Step 05

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

Step 06

Add Blueberries: Toss blueberries with 1 tablespoon flour to prevent sinking, then gently fold into the batter.

Step 07

Fill Muffin Cups and Add Streusel: Divide batter evenly among muffin cups and sprinkle each with a generous amount of streusel topping.

Step 08

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

Step 09

Cool: Allow muffins to cool in the tin for 5 minutes, then transfer 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

Check ingredients for allergens, and ask your doctor if you’re unsure.
  • Contains wheat (gluten), dairy, and eggs. May contain tree nuts due to shared processing facilities.

Nutrition Details (per portion)

Provided for general reference—always check with your healthcare advisor.
  • Calorie Count: 245
  • Fat Content: 11 g
  • Carbohydrates: 33 g
  • Proteins: 3 g