Step by step

Beat the egg whites until stiff

Tips
When beating the egg whites, add a pinch of salt: they will stiffen up even more effectively! Another tip: when cooking a cake, never open the oven during the first twenty minutes. You risk stopping the cake from rising perfectly!
Trivia
It seems that the Italian name for this cake ‘margherita’ – meaning ‘daisy’ - derives from the daisy colour contrast that occurs between the yellow and the white on the surface of the dough when dusted with icing sugar.