Mix the sugar with the water and
boil softly for 8 minutes. Add the juice from two lemons and the grated rind
from 1 lemon. Add the orange juice. Put in the freezer for at least four
hours; stir every hour; or use an electrical ice cream maker.
Cook the apples with the sugar,
the cinnamon and the lemon rind
in a little bit of water until they are soft, then puree in the food
processor. Cool down for a few hours in the fridge. Beat the egg whites for
5 minutes and mix with the apple sauce. Put in the freezer for at least four
hours; stir every hour; or use an electrical ice cream maker.