Recreate Starbucks' famous blueberry muffins at home with this easy recipe featuring juicy berries and a buttery streusel topping that rivals the coffee shop favorite!
Mix the melted butter, sugar, lemon zest, and flour together in a small bowl. Set aside.
Muffins
Preheat the oven to 425°F. Grease a muffin tin with non-stick spray.
Whisk the melted butter, vegetable oil, eggs, and milk (or buttermilk) in a bowl until the mixture is uniform.
In another bowl, add 2 1/2 cups sifted flour, sugar, baking powder, and baking soda. Stir to combine.
Combine the whisked egg mixture with the dry ingredients, and stir.
Sprinkle 1 tablespoon flour over the blueberries. Then add the blueberries to the muffin batter. Stir only until they are mixed to avoid bursting the blueberries.
Fill each muffin cup 2/3 full with batter, and top with the streusel mixture.
Bake at 425°F for 10 minutes. Then lower the oven temperature to 375°F and bake for another 10 or 15 minutes.
Recipe Tips
The initial high baking temperature is crucial for creating that classic bakery-style domed top. Be careful not to overmix the batter once you add the dry ingredients—mix just until no dry pockets remain. Overmixing develops gluten, resulting in tough muffins. For the most vibrant flavor, use fresh berries when in season, but frozen work beautifully year-round (no need to thaw first). Make sure all refrigerated ingredients are at room temperature before beginning for the most even mixing.