In a large mixing bowl, whisk the egg whites with a pinch of salt until soft peaks form. Gradually add the sugar and continue whisking until glossy and stiff peaks form. Set aside.
In another bowl, whisk together the egg yolks, milk, vanilla extract, flour, cornstarch, and baking powder until smooth.
Carefully fold 1/3 of the egg white mixture into the yolk mixture using a spatula, being gentle to avoid deflating the egg whites. Repeat this step two more times until fully combined.
Heat a non-stick skillet over low heat and add a small dab of butter to grease the pan.
Using a ring mold or a large cookie cutter, pour about 1/4 of the batter into the mold. Allow it to cook for about 4-5 minutes until bubbles start to form on the surface. Carefully flip the pancakes with the mold and cover with a lid. Cook for an additional 4-5 minutes until puffed and cooked through.
Gently remove the ring mold and transfer the pancakes to a plate, stacking them if desired.
Repeat the cooking process for the remaining batter.
Serve warm, drizzled with maple syrup and topped with fresh fruit.