£100 sammich

It is the ultimate lunchtime snack using the most sought-after ingredients from across the Continent.

But at £100 a time it costs more than dinner for one in some of the finest restaurants around the world.

The Von Essen Platinum club sandwich is a triple-decker gourmet delight containing the finest chicken, ham, hard-boiled quails' eggs and white truffles.

It is on the menu at Cliveden, Berkshire, the country house hotel made famous by the Profumo scandal - and it weighs in at more than 1lb.

The chicken is poulet de Bresse, described by the French as the 'fourth gastronomic wonder of the world'. In the 16th Century, Henry IV of France demanded the inclusion of the corn-fed variety on the court menu.

Then there are layers of Iberico ham, which comes from the prized black-footed pig in Italy and has been air-cured for two-and-a-half years, and exotic hard-boiled quails' eggs are imported from northern Italy.

But what really sets the sandwich apart are the lavish shavings of white truffles - the most expensive type in the world. At £1,250 a pound, the truffles alone in each sandwich cost £25.

The final touches are semi-dried Italian tomatoes, mayonnaise and some seasonal salad. It is all held together in three layers of sourdough bread, made to a classic French recipe and fermented for 24 hours. Even then, only the middle of each loaf is used and the rest is thrown away.

Carlos Martinez, head chef at Cliveden, said: "We have made six sandwiches so far and the feedback has been very positive. It is a very good sandwich. We have used the top quality of every ingredient."