Tonight, two special guest chefs join the line-up. Multi-Michelin starred Chefs Jason Atherton and Tom Aikens, both former winners and judges on Great British Menu, put their reputations on the line and compete again against some of the UK's best young chefs. The fish and main courses are the heart of any Great British Menu Banquet and, with so many the incredible standard of chefs taking part, opulence, luxury, and mouth-watering food are on the menu. The fish course sees a spectacular salmon and a huge turbot, known as ‘the King of the Sea', cooked in a giant antique copper pan known as a turbot kettle. For mains, there's venison and a roast combining 12 different birds. And the chefs won't just be cooking, they'll be judging each other too. Four chefs cook, while the other four taste and score their dishes in a blind tasting. The roles are then reversed, resulting in incredible cooking, tough criticism and surprising scores.