Chef John's Blueberry Muffins

Step 1
Preheat the oven to 375 degrees F (190 degrees C). Grease 16 muffin cups, or line with paper muffin liners.

Step 2
Beat butter and sugar in a large bowl until light and fluffy, about 3 minutes. Stir in eggs until well mixed. Add vegetable oil, stir to combine. Whisk sour cream, milk, and lemon zest into butter mixture until smooth.

Step 3
Whisk flour, baking powder, baking soda, and salt in a small bowl.

Step 4
Stir half the flour mixture into the butter mixture until combined. Add remaining half of flour mixture and blueberries into the batter, folding together until just combined.

Step 5
Spoon batter into prepared muffin cups.

Step 6
Place muffin cups on center rack of the preheated oven and bake until tops are golden and a toothpick inserted into the center of a muffin comes out clean, about 30 minutes.