In a bowl, beat the egg yolks with 80 grams of sugar.
In a separate bowl, beat the egg whites with the remaining 80 g of sugar. Gently combine the two mixtures, being careful not to deflate the egg whites. Gradually fold in the sifted flour, moving from bottom to top.
Pour the mixture onto a baking tray lined with parchment paper, and spread it evenly using a spatula.
Bake in a preheated static oven at 180°C for about 9-10 minutes.