01 - In a large bowl, whisk together the flour, sugar, baking powder, and salt.
02 - In a separate bowl, blend the ricotta, egg yolks, milk, melted butter, lemon zest, lemon juice, and vanilla until smooth.
03 - Add wet ingredients to dry ingredients and stir until just combined without overmixing.
04 - Beat egg whites until soft peaks form and gently fold into the batter to maintain lightness.
05 - Preheat a nonstick skillet or griddle over medium heat and lightly grease with butter or oil.
06 - Pour 1/4 cup batter per pancake onto the skillet. Cook 2 to 3 minutes until bubbles appear and edges set. Flip and cook an additional 1 to 2 minutes until golden and cooked through.
07 - Transfer pancakes to a plate and keep warm while finishing remaining batter.
08 - Stack pancakes and top with fresh berries, drizzle with maple syrup or honey, and dust with powdered sugar if desired.