Step 1

Preheat the oven to 350 degrees F (175 degrees C). Line 16 muffin cups with paper liners.

Step 2

Sift flour, baking powder, baking soda, and salt together in a bowl.

Step 3

Combine sugar, milk, sour cream, butter, eggs, and lemon zest in a large bowl. Beat with an electric mixer on low speed until blended. Fold in the flour mixture until batter is just moistened. Fold in blueberries; avoid overmixing because batter will turn purple.

Step 4

Fill muffin cups 3/4 full of batter.

Step 5

Bake in the preheated oven until golden brown, 30 to 35 minutes. Let cool for 10 minutes.