01 - In a large bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until evenly mixed.
02 - In a separate bowl, whisk the buttermilk, milk, eggs, melted butter, vanilla extract, lemon zest, and lemon juice until fully blended.
03 - Pour the wet mixture into the dry ingredients and stir gently until just combined, leaving some lumps intact for tenderness.
04 - Carefully fold the fresh blueberries into the batter to avoid breaking them.
05 - Heat a nonstick skillet or griddle over medium heat and lightly grease with butter.
06 - Pour approximately 1/4 cup of batter per pancake onto the skillet. Cook until bubbles appear on the surface and edges look set, about 2 to 3 minutes.
07 - Flip each pancake and cook for an additional 1 to 2 minutes until golden brown and cooked through.
08 - Continue cooking the remaining batter, greasing the skillet as needed between batches.
09 - Stack pancakes while hot, drizzle with maple syrup, and garnish with extra blueberries and lemon zest if desired.