Begin by separating the egg yolks and egg whites into two distinct mixing bowls. Ensure that no yolk is left in the egg whites for optimal whipping.
In the bowl containing the egg yolks, combine the 1/4 cup of granulated sugar and the vanilla extract. Whisk vigorously until the mixture is smooth and creamy.
Slowly pour the milk into the egg yolk mixture, whisking until everything is excellently combined and silky.
In a separate bowl, sift together the all-purpose flour and baking powder to ensure an airy texture. Gradually incorporate this dry mixture into the egg yolk mixture. Stir gently until just mixed; do not overmix.
In the bowl with the egg whites, use an electric mixer on medium speed to beat the egg whites until they are frothy. Gradually add the remaining 1 tablespoon of granulated sugar, continuing to beat until stiff peaks form.
Carefully fold the whipped egg whites into the egg yolk mixture in three additions, using a spatula. Gently lift and fold the mixtures to maintain that delightful fluffiness.
Preheat a non-stick skillet over low heat and add 1 tablespoon of unsalted butter, allowing it to melt and coat the pan evenly.
Once the butter is bubbly but not browned, gently pour a ladleful of batter into the center of the skillet. Immediately cover the skillet with a lid to trap the steam. Cook for 3-4 minutes.
Carefully flip the pancake using a spatula, cover the skillet again, and cook for an additional 3-4 minutes on the other side, or until they are lightly golden and fluffy.
Repeat the cooking process with the remaining batter, adding more butter to the skillet as necessary to prevent sticking.
Serve the pancakes immediately, stacked high on a plate, and generously dusted with powdered sugar. Top with a colorful assortment of fresh berries for a delicious finish.
Notes
For a stunning presentation, stack the pancakes high, dust with powdered sugar, and garnish with fresh berries.