Preheat the oven to 350°F (175°C) and line a jelly roll pan with parchment paper.
Beat the eggs and sugar until thick and fluffy, then gently fold in the flour and vanilla extract.
Spread the batter evenly in the prepared pan and bake for 10–12 minutes, or until the sponge is lightly golden.
Invert the warm cake onto a clean kitchen towel dusted with powdered sugar and roll it up gently. Let it cool completely.
Unroll the cake and spread whipped cream along with your preferred fruit jam or flavored filling.
Roll the cake tightly, wrap it, and chill in the refrigerator for at least 1 hour.
Dust with powdered sugar or decorate with fresh berries before slicing and serving.