3 eggs
1/2 cup sugar (125 g)
3/4 cup flour
1 tsp baking powder
1 can dulce de leche
Separate the egg whites from the yolks
Beat the egg whites on high speed until fluffy, gradually adding sugar
Continue beating and add the yolks
Reduce mixer speed to low, add flour and baking powder
Line a baking tray with parchment paper
Spread the batter in a thin layer to form a rectangle about 30 × 50 cm
Bake in a preheated oven at 180°C for about 12 minutes
Transfer the hot sponge onto a towel and roll it up together with the towel
Once cooled, unroll the sponge, spread dulce de leche evenly, and roll again
Dust with powdered sugar and decorate with berries if desired