By Tessa Kiros
This is what Nonna does to use up egg whites after using the yolks in a cream or elsewhere. It is lovely as a cake, but quite special turned into Cantuccini.
Preheat the oven to 170°C (325°F/Gas 3). Butter a round 24 cm (9½ inch) springform cake tin and line the base with baking paper.
Using electric beaters, first whisk the egg whites in a bowl until white and snowy. Keep aside. Without washing the beaters whisk the sugar, butter a