Blackberry Sorbet

Step 1: Clean the blackberries thoroughly and remove stalks.

Step 2: Puree the fruit in a blender and strain through a sieve.

Step 3: Dissolve the sugar in the water and boil for about 5 minutes to make a syrup. Add the blackberries and boil for a further minute. Set aside to cool.

Step 4: When the liquid has cooled, fold it into stiffly-beaten egg whites.

Step 5: Freeze in an ice-cream machine or in a tray in the freezer. If the latter is used, the mixture should be stirred about once an hour to prevent large ice crystals developing.