Step 1: Prepare the Batter

1. In a large mixing bowl, whisk together the egg yolks, milk, and vanilla extract until smooth.
2. Sift the cake flour and baking powder into the egg yolk mixture. Gently fold until just combined. Avoid overmixing.

Step 2: Whip the Egg Whites

1. In a separate clean bowl, beat the egg whites with a pinch of salt using an electric mixer until frothy.
2. Gradually add the sugar while continuing to beat the egg whites until stiff peaks form. The meringue should be glossy and hold its shape.

Step 3: Combine the Batter and Meringue

1. Gently fold the meringue into the egg yolk mixture in three additions. Use a spatula and fold carefully to maintain the airiness of the batter.

Step 4: Cook the Pancakes

1. Heat a non-stick frying pan over low heat and lightly grease it with butter.
2. Spoon or pipe the batter into the pan to form tall, round pancakes. You can use ring molds for a perfect shape.
3. Cover the pan with a lid and cook for 4-5 minutes on low heat.
4. Carefully flip the pancakes using a spatula and cook for another 3-4 minutes until golden brown and cooked through.

Step 5: Serve and Enjoy

1. Transfer the pancakes to a plate and top with your favorite toppings, such as fresh berries, whipped cream, or maple syrup.