01 - In a large bowl, whisk together flour, sugar, baking powder, baking soda, and salt until evenly mixed.
02 - In a separate bowl, whisk buttermilk, milk, eggs, melted butter, lemon zest, lemon juice, and vanilla extract until smooth.
03 - Pour wet ingredients into the dry mixture and gently fold until just combined, leaving some lumps intact to maintain fluffiness.
04 - Carefully fold fresh blueberries into the batter to avoid bursting them.
05 - Heat a non-stick skillet or griddle over medium heat and lightly grease with butter or oil.
06 - Pour 1/4 cup of batter per pancake onto the skillet. Cook 2 to 3 minutes until bubbles form and edges are set.
07 - Flip pancakes and cook an additional 1 to 2 minutes until golden and cooked through. Repeat with remaining batter.
08 - Stack pancakes warm on plates, garnish with extra blueberries, drizzle with maple syrup, and optionally add butter or powdered sugar.