Frittata di Tartufi

In Umbria the locals use the delectable black truffle rather like the rest of us use parsley – in generous quantities with not a lot of regard for its value on the market! In sizeable chunks, it flavours this rustic omelette to make it something really special. The important thing is that the truffles should be absolutely fresh and that they should not stew as the eggs cook, so make sure the omelette stays soft and slightly runny in the centre. If truffles are out of the question, flavour t