Ramsay's Best Restaurant

The finalists in the Thai restaurant category are Nahm Jim from Scotland and London's Mango Tree. Sparks fly as the restaurants bid to be best of the best.

Nahm Jim is a homely Thai restaurant hidden away in the golfing capital of St. Andrews in Scotland. Owned by Bee and her husband Sandy, Nahm Jim was crowned Britain's best Thai by The Times two years ago, and has ingredients flown in from Bangkok on a weekly basis.

London's Mango Tree is a stylish Thai whose 50 staff serve up to 500 people a day. The English head chef is devoted to creating the finest contemporary Thai cuisine, and he's won a string of awards.

Gordon puts both restaurants through a series of gruelling tests, and tempers fray as both restaurants attempt to prove themselves as the best of the best.

On the menu is roasted corn-fed poussin marinated in coconut milk, lemongrass, galangal, turmeric and lime leaves, served with green papaya salad; exotic chargrilled tamarind duck; and tender lamb cutlets marinated in miso and sweet Thai chilli sauce; Thai haggis; honey mango with coconut milk, and sweet black sticky rice 'toffee' with banana.