Preheat oven to 250°F.
In a large bowl, vigorously whisk together egg yolks, sugar, and lemon zest until light in color and thickened, about 2 minutes.
Add vanilla, ricotta cheese, and whole milk; mix to combine.
Add sifted flour and mix again to combine.
Meanwhile, in a separate bowl, beat egg whites with a pinch of salt until they hold stiff peaks.
Fold 1/3 of the egg whites into the batter to lighten the mixture, then fold in remaining egg whites being careful not to deflate them.
To cook the pancakes, heat a large non-stick or cast iron pan over medium heat. Add 1-2 tablespoons of butter to the pan and when melted, spoon about 1/3 of the batter into the pan making four 3-inch pancakes. Allow to cook for three minutes (or until the bottom is nicely golden), then carefully flip the pancakes and cook another three minutes on the second side (or until nicely browned on both sides and cooked through in the center).
Remove pancakes to a baking sheet lined with a cooling rack and keep warm in the oven while you cook the remaining eight pancakes.
While the pancakes cook, whip the heavy cream until it holds soft peaks, then fold in mascarpone and honey.
Serve warm pancakes with the whipped cream mixture and fresh blueberries.