Warm a griddle or large skillet over medium heat; lightly grease with oil or butter.
Whisk flour, sugar, baking powder, baking soda, and salt in a large bowl.
In a second bowl, whisk buttermilk, beaten egg, melted butter, and vanilla until smooth.
Pour wet ingredients into the dry; stir gently just until no dry streaks remain.
Fold in blueberries and lemon zest. Let the batter rest 5 minutes to aerate.
Scoop 1/4-cup portions onto the hot griddle. Cook until edges look set and bubbles hold, 2–3 minutes.
Flip and cook until golden and cooked through, 1–2 minutes. Repeat, greasing the pan as needed.
Notes
Try swapping half the blueberries with raspberries, or sprinkle cinnamon sugar on the griddle for a caramelized edge. To keep pancakes warm, hold them in a 200°F oven on a wire rack. Leftovers freeze well; reheat in a toaster or skillet.This recipe is an original creation inspired by classic Fluffy Blueberry Pancakes flavors. All ingredient ratios and instructions are independently developed.