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To Die For Blueberry Muffins with Crumble Topping

These To Die For Blueberry Muffins with Crumble Topping are the ultimate bakery-style treat—moist, fluffy, and bursting with juicy blueberries. The golden streusel topping adds a delightful crunch that makes every bite irresistible.
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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 12 servings
Calories: 220
Ingredients Method Notes

Ingredients
  

Ingredients
  • 2 cups all-purpose flour
  • 1/2 cup granulated sugar
  • 1/4 cup brown sugar
  • 2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup buttermilk
  • 1/4 cup vegetable oil
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 1/2 cups fresh blueberries
  • 1/2 cup all-purpose flour (for crumble topping)
  • 1/4 cup granulated sugar (for crumble topping)
  • 1/4 cup brown sugar (for crumble topping)
  • 1/2 teaspoon ground cinnamon
  • 1/4 cup cold butter, cubed

Method
 

Instructions
  1. Preheat your oven to 375°F (190°C). Line a muffin tin with paper liners or grease it lightly with butter or cooking spray.
  2. In a small bowl, combine the flour, granulated sugar, brown sugar, and cinnamon for the crumble topping. Add the cold cubed butter and use your fingers or a fork to mix until the mixture resembles coarse crumbs. Set aside.
  3. In a large bowl, whisk together the flour, granulated sugar, brown sugar, baking powder, baking soda, and salt.
  4. In another bowl, mix the buttermilk, vegetable oil, egg, and vanilla extract until well combined.
  5. Pour the wet ingredients into the dry ingredients and stir gently until just combined. Be careful not to overmix; a few lumps are okay. Gently fold in the blueberries.
  6. Divide the batter evenly among the muffin cups, filling each about 2/3 full. Sprinkle the crumble topping generously over each muffin.
  7. Bake in the preheated oven for 18-22 minutes, or until a toothpick inserted into the center of a muffin comes out clean. Allow the muffins to cool in the tin for 5 minutes before transferring them to a wire rack to cool completely.

Notes

Use fresh blueberries for best results, but frozen can be used if not thawed. Avoid overmixing the batter to keep muffins fluffy. Buttermilk can be substituted with a mixture of milk and lemon juice or vinegar.