This is a cold savoury tart with a delicious creamy filling of subtly flavoured squid with avocados and prawns. If you have never tasted squid, it is mild and delicious and sold fresh now in several fishmongers. This is a pretty-looking dish and good for parties too.
To make the pastry cut the fat into the flour and rub in lightly with your fingertips until it resembles breadcrumbs. Mix in the beaten egg with a knife. Gather into a ball and refrigerate for an hour or more. Then roll out and line a buttered