LONDON (AFP) -- A new gourmet sandwich went on sale at an up market London store Monday -- but at a cost of 85 pounds (122 euros, 148 dollars), it could be too much to swallow for hungry shoppers.

The cheekily-named McDonald sandwich -- after its creator Scott McDonald, the executive chef of department store Selfridges on Oxford Street -- earns its whopping price tag because of the Wagyu beef that makes up most of the filling.

According to the Sunday Telegraph, which had a taster of the expensive delicacy, the 21-ounce (595-gramm) sandwich comprises 24-hour fermented sour dough bread, spread with a foie gras-flavored mayonnaise.

It also contains Brie de Meaux, considered one of Europe's finest cheeses, English cherry tomatoes and rocket, plus roasted peppers.

"Utterly fantastic mixture of tastes," one of Britain's leading chefs, Giorgio Locatelli, told the newspaper through a mouthful of the sandwich.

The newspaper said five orders was taken in advance of the sandwich going on sale.