Preheat your oven to 375°F (190°C) and line a muffin tin. Yes, preheating matters—this isn’t optional.
Whisk the dry ingredients in a large bowl. Flour, sugar, baking powder, and salt all get cozy together.
Mix the wet ingredients in a separate bowl. Eggs, milk, oil (or butter), and vanilla—smooth but not aggressively whipped.
Combine wet and dry gently. Stir just until no dry flour remains. Lumps are fine. Overmixing is not.
Fold in the blueberries like you actually care about them. Slow and gentle wins here.
Scoop the batter into the muffin tin, filling each cup almost to the top. Confidence is key.
Bake for 18–22 minutes until the tops are golden and spring back when touched. Your kitchen will smell incredible.
Cool slightly, then eat one warm because waiting is overrated.