01 - Whisk together flour, sugar, baking powder, baking soda, and salt in a large bowl.
02 - In a separate bowl, blend ricotta, egg yolks, milk, melted butter, lemon zest, lemon juice, and vanilla until smooth.
03 - Gently fold wet mixture into dry ingredients until just combined; avoid overmixing.
04 - Beat egg whites in a clean bowl until stiff peaks form.
05 - Carefully fold the egg whites into the batter in two additions, preserving airiness.
06 - Heat a nonstick skillet or griddle over medium heat and lightly grease with butter or oil.
07 - Pour 1/4 cup batter per pancake onto the skillet. Cook 2–3 minutes until bubbles appear and edges set, flip, and cook 1–2 minutes more until golden and cooked through.
08 - Serve pancakes warm with maple syrup, fresh berries, and powdered sugar if desired.