Wendy's unveils gourmet foie gras and truffle sauce burgers

US fast-food chain Wendy's, has unveiled a foie gras burger in its new Tokyo restaurant in an effort to attract customers from rivals McDonald's and Burger King.

Two years after exiting the Japanese market the chain is hoping its exotic new menu will tickle the sophisticated Japanese palate.

Regular fast food is still on the menu. The foie gras burgers cost €12 euro. Avocado and wasabi burgers are also on the menu for €8 as well as grilled chicken served with truffle and mushroom sauce for €9.