Angel Food Cake

• 12 egg whites (about 350 ml)
• 1½ tsp cream of tartar

Whisk the egg whites until foaming, then add the cream of tartar and continue whisking until stiff. Add the sugar 1 tbsp at a time, whisking after each addition to form a stiff meringue. Fold in the flour, cornflour and vanilla. Pour into an ungreased angel cake or tube tin and