Put the eggs and sugar in a bowl and mix evenly with a whisk.
Sift in the cake flour and baking powder, then mix well.
Grease a pan with butter, pour in the batter, and cook over low heat.
Cook both sides until golden brown, then let it cool.
Whip the whipping cream until stiff peaks form with a whisk.
Spread the whipped cream on top of the cooled cake.