Place all the ingredients in a blender, food processor or Nutribullet and blend until smooth
The apple is not essential as it does not add particular flavour, but freshness, and it mellows the garlic
I find that if made 24 hrs in advance the flavours mellow.
Traditionally served with halved seedless grapes
Prawns: 1-2 cooked prawns per person. Cut prawns into 1cm pieces and marinate in dressing (for 6-8 persons) made of: 100ml olive oil, 20ml lemon juice or sherry, 20ml finely chopped parsley, for an Asian touch add 1 mild red chilli, finely chopped & replace parsley with coriander.
Panchetta or streaky bacon, grilled until crisp, sprinkled on surface just before serving.