Preheat the oven to 350 °F (175 °C). Grease two 9‑inch round cake pans with butter or cooking spray.

In a bowl, whisk together cake flour, baking powder, and granulated sugar; set aside.

In a clean bowl, whip egg whites to stiff peaks—they should look light and fluffy like clouds.

In another bowl, blend milk, melted butter, and vanilla extract until smooth. Gently combine this with the dry ingredients.

Carefully fold in the whipped egg whites using a spatula—preserving the airy texture is key.

Divide the batter between the prepared pans and bake for about 25–30 minutes, until golden brown. Let cool completely on wire racks.

Frost with powdered sugar or a delicate dusting—alternatively top with whipped cream or fresh berries for added flavor and charm.