Beat egg whites and salt until quite stiff,add sugar and beat until dissolved.

Fold in vanilla cornflour and vinegar.

Put in lamington tray 23x30cm lined with baking paper

Sprinkle with one teaspoon of cinnamon and one of sugar

Cook 10min on 375°F or 190c then let cool.

Fill with whipped cream and fruit or a peppermint crisp and cream and roll up.