Lemon curd ice cream

Instructions

• Gently heat the sugar and
  500ml/18fl oz water until the
  sugar has dissolved. Bring to the
  boil, stirring occasionally. Remove
  from the heat and allow to cool.
• Stir the coffee and sugar syrup
  together, put in a freezer container
  and freeze until solid.
• Just before serving, turn the granita
  out of the freezer container and
  chop into chunks. Put in a blender
  or food processor, and briefly whiz
  until it forms small crystals.
• Spoon the granita into tall glasses,
  and serve immediately