First of all, prepare with baking paper or grease the baking tray you are using.
Separate the egg whites and yolks.
Beat the egg whites until the form peaks and have a firm texture. You can do it by hand or with a whisk or kitchen robot.
Use another bowl to mix the egg yolks and sugar until you have a nice texture because the sugar has incorporate to the mix.
Add the sifted flour, baking powder and salt to the egg yolks and sugar mix and whisk again.
With the help of a spatula incorporate the mix to the egg whites gently. You will have a fluffy texture.
Preheat the oven 345º Fahrenheit (180ºCelsius).
Fill the pipping bag with the batter with a big muzzle (I used a 20mm one) and form the savoiardis on the baking tray. They will rise, there must be some space between them.
Dust with confectioner’s sugar.
Bake for 10-15 minutes, until they brown.
Let them cool and enjoy!