01 - In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt.
02 - In a separate bowl, whisk buttermilk, milk, eggs, melted butter, vanilla extract, lemon zest, and lemon juice until smooth.
03 - Pour wet ingredients into the dry mixture and stir gently until just combined; small lumps are acceptable.
04 - Fold fresh blueberries into the batter carefully to maintain their shape.
05 - Heat a nonstick skillet or griddle over medium heat and lightly grease with butter.
06 - Pour approximately 1/4 cup batter per pancake onto the skillet. Cook 2–3 minutes until bubbles form on the surface and edges look set.
07 - Turn pancakes over and cook an additional 1–2 minutes until golden brown and cooked through.
08 - Continue cooking remaining batter, greasing the skillet as needed.
09 - Serve pancakes warm, stacked and drizzled with maple syrup. Optionally, garnish with extra blueberries and lemon zest.