Preheat & Prep:
Preheat oven to 355°F (180°C).
Line the bottom of an 8-inch round cake pan with parchment paper. Do not grease the sides.
Let eggs come to room temperature for better volume.
In a small bowl, sift together the cake flour, cornstarch, and salt. Set aside.
Make the Yolks Base:
In a large mixing bowl, beat the egg yolks with 65 g sugar until pale and thick (about 3–4 minutes).
Add vanilla extract and mix just until combined.
Whip the Egg Whites:
In a clean, grease-free bowl, start whipping the egg whites until frothy.
Gradually add the remaining 65 g sugar while whipping.
Continue beating until stiff, glossy peaks form (not dry or overwhipped).
Fold the Batter:
Gently fold ⅓ of the whipped egg whites into the yolk mixture to loosen it.
Add remaining egg whites in two parts, folding gently with a spatula.
Sift in dry ingredients in two additions, folding carefully until no streaks remain. Do not overmix.
Bake:
Pour batter into the prepared pan.
Tap the pan lightly on the counter to release air bubbles.
Bake for 25–30 minutes, or until the top is golden and a toothpick comes out clean.
Avoid opening the oven early to prevent collapse.
Cool & Finish:
Let cake cool in the pan for 5–10 minutes.
Run a knife around the edge and invert onto a wire rack to cool completely.
Once cooled, brush the top with simple syrup if desired, to lock in moisture.