These muffins are bakery-style—tall, tender, and full of fresh blueberries and bright lemon flavor. A buttery streusel tops each muffin before baking, creating a crisp, sweet finish.

The recipe is designed for a jumbo muffin pan to achieve a tall, bakery-style rise, though you can also make a standard 12-muffin batch with the same batter. The batter comes together in a few simple steps—no electric mixer required—then is scooped and baked to golden perfection.
Ingredients Notes
Full ingredient amounts are in the recipe card below. These notes highlight key ingredients and tips.
Blueberries – Use fresh blueberries for best texture and color. If using frozen berries, toss them in 1 tbsp flour just before folding into the batter to absorb excess moisture and prevent bleeding; do not thaw.
Flour – All-purpose flour works perfectly for this recipe.
Lemon – Both zest and juice are used to give bright citrus notes throughout the muffins.
Eggs – Use room-temperature eggs for better emulsification and volume.
Sour cream – Full-fat sour cream (room temperature) adds moisture and a subtle tang that balances the sweetness.
Oil – A neutral-flavored oil keeps the crumb tender; melted butter may be used instead for a richer flavor.

Step by step instructions
Below are clear, step-by-step directions for making Bakery Style Sour Cream Blueberry Muffins. No electric mixer is required.
Step 1 – Prep. Preheat the oven to 400°F (205°C). Line a jumbo muffin tin with liners and set aside.
Step 2 – Make the streusel. In a medium bowl, combine flour, sugar, and cold butter. Use your fingers or a pastry cutter to work the butter into the dry ingredients until crumbly. Chill while you prepare the batter.
Step 3 – Mix dry ingredients. In a medium bowl, whisk together flour, baking powder, baking soda, and salt; set aside.
Step 4 – Zest and sugar. In a small bowl, rub the lemon zest into the white sugar with your fingers for about 2 minutes. This releases the lemon oils and intensifies flavor.
Step 5 – Whisk wet ingredients. To the sugar and zest, add oil, eggs, lemon juice, vanilla, and sour cream. Whisk until smooth and combined.
Step 6 – Combine. Add the dry ingredients to the wet and gently fold with a spatula until the batter is just combined—stop when no flour streaks remain to avoid over-mixing.
Step 7 – Add blueberries. Lightly toss the blueberries with 1–2 teaspoons of flour (this helps prevent sinking and keeps color from bleeding). Fold the berries into the batter a few times.
Step 8 – Scoop and top. Divide the batter evenly among the liners, filling each about 3/4 full. Generously sprinkle the chilled streusel on top of each muffin.
Step 9 – Bake. Bake at 400°F for 22–27 minutes for jumbo muffins, or 15–17 minutes if using a regular 12-muffin tin. Muffins are done when a toothpick inserted in the center comes out clean or they spring back lightly to the touch.
Store cooled muffins covered at room temperature for up to 3 days, or in an airtight container in the refrigerator for up to one week.

Expert Baking Tips
- Use a scale. Measuring ingredients by weight improves accuracy and consistency in baking.
- Avoid over-mixing. Overworked muffin batter produces a dense, tough crumb. Fold until just combined.
- Fresh berries preferred. Fresh blueberries keep their texture better than frozen. If using frozen, coat them in flour and add straight from the freezer.
FAQ
Can I use a regular 12-muffin tin?
Yes. Bake at 400°F for about 15–17 minutes. Watch for a clean toothpick or a springy top.
What about leftover streusel?
Streusel freezes well. Store in a zip-top bag in the freezer and sprinkle directly on muffins while frozen—no thawing needed.
Can I taste the sour cream?
The sour cream adds moisture and a subtle tang that balances the sweetness, but it’s not overtly noticeable.
Do I have to add blueberries or streusel?
No. You can omit the blueberries or replace them with other fruit. Streusel is optional—sprinkling a little granulated sugar on top also works for a simple finish.

Related recipes to try
Coconut Toffee Cookies
Coconut Shortbread Bars
Coconut Chocolate Chip Muffins
Pistachio Nutella Muffins
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Bakery Style Sour Cream Blueberry Muffins
Ania
Ingredients
For the streusel
- 3/4 cup all-purpose flour
- 5 tbsp cold butter, cut into pieces
- 1/3 cup white sugar
For the muffins
- 1 cup white sugar
- Zest of 1 lemon (about 1 tbsp)
- 1/2 cup oil
- 2 large eggs, room temperature
- 1 tbsp lemon juice
- 1 tbsp vanilla
- 1 cup sour cream, room temperature
- 2 cups all-purpose flour (+1–2 tbsp for dusting blueberries)
- 2 tsps baking powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 1/3 cups fresh blueberries, washed and dried
Instructions
- Preheat the oven to 400℉/205℃. Line a jumbo muffin tin with liners and set aside.
For the streusel
- Combine streusel ingredients (3/4 cup flour, 5 tbsp butter, 1/3 cup sugar) and work into crumbs. Chill while preparing batter.
For the muffins
- Whisk together dry ingredients (2 cups flour, 2 tsps baking powder, 1 tsp baking soda, 1/2 tsp salt) in a bowl.
- Rub lemon zest into 1 cup sugar for about 2 minutes to release oils. Add oil, eggs, sour cream, vanilla, and lemon juice; whisk until smooth.
- Fold dry ingredients into wet ingredients with a spatula until just combined.
- Toss blueberries with 1–2 tsps flour and gently fold into the batter.
- Scoop batter into liners, filling about 3/4 full. Sprinkle streusel on top.
- Bake at 400°F for 22–27 minutes (jumbos) or 15–17 minutes (regular). Cool and enjoy.