Bakery-Style Blueberry Muffins with Sour Cream Crumb Topping

These moist, bakery-style blueberry muffins are bursting with juicy berries and topped with a buttery crumb that’s irresistible. Thanks to sour cream, they stay incredibly tender and flavorful—perfect for breakfast, brunch, or a sweet midday snack.

🫐 Why You’ll Love This Recipe

Sour cream adds a subtle tang and extra moisture, balancing the natural sweetness of blueberries. These muffins are easy to make, freezer-friendly, and feel like a weekend treat straight from your favorite bakery.

📝 Ingredient Notes

• Sour Cream: Full-fat works best for rich, tender muffins. You can substitute plain Greek yogurt if needed.
• Blueberries: Fresh berries are ideal, but frozen ones work too—just don’t thaw before using.
• Sugar: Granulated sugar sweetens the muffin base; brown sugar adds a deep flavor to the crumb topping if you prefer to use it there.

👨‍🍳 Step-by-Step Instructions

1. Make the Crumb Topping
   In a small bowl, combine the crumb topping ingredients. Mix with a fork until it forms a coarse, crumbly texture. Set aside.
2. Mix Dry Ingredients
   In a large mixing bowl, whisk together your dry ingredients (flour, baking powder, salt, etc.).
3. Mix Wet Ingredients
   In a separate medium bowl, whisk together the wet ingredients, including the sour cream, eggs, and vanilla.
4. Combine Wet and Dry
   Slowly add the wet mixture into the dry ingredients. Stir until just combined—don’t overmix.
5. Coat Blueberries
   In a small bowl, toss blueberries with a little flour. This helps prevent them from sinking during baking.
6. Fold in the Berries
   Gently fold the coated blueberries into the batter until evenly distributed.
7. Fill Muffin Cups
   Line your muffin tin with paper liners. Fill each one about ¾ full using a spoon or ice cream scoop for even portions.
8. Top & Bake
   Sprinkle the crumb topping over each muffin and add a few extra blueberries on top for a picture-perfect finish. Bake in a preheated oven until golden and a toothpick inserted in the center comes out clean.

💡 Tips for Perfect Muffins

• Measure flour carefully: Spoon it into the cup and level off—don’t scoop straight from the bag.
• Avoid overmixing: Stir until ingredients are just combined to prevent tough or dry muffins.
• Use a scoop: An ice cream scoop makes portioning easy and uniform.
• Top it off: Adding a few blueberries on top before baking makes them look just like the ones at the bakery.