01 - In a medium bowl, whisk together flour, baking powder, baking soda, and salt until evenly mixed.
02 - In a large bowl, blend ricotta, milk, egg yolks, sugar, melted butter, lemon zest, lemon juice, and vanilla extract until smooth.
03 - Gently fold the dry mixture into the wet ingredients until just combined, avoiding overmixing.
04 - Using a clean bowl, beat egg whites until soft peaks form, then carefully fold into the batter to maintain fluffiness.
05 - Heat a nonstick skillet or griddle over medium heat and lightly grease with butter or oil.
06 - Pour about ¼ cup batter for each pancake onto the pan. Cook 2 to 3 minutes until bubbles form and edges set; flip and cook 1 to 2 minutes until golden and cooked through.
07 - Serve warm with maple syrup, fresh berries, and optionally a dusting of powdered sugar.