It's the 20th anniversary series of Great British Menu, and four chefs compete for Northern Ireland with canapes, starters and fish dishes celebrating great Britons of the past for a banquet at historic Blenheim Palace.

The dishes are judged by Michelin-starred chef Angela Hartnett, and they include a fusion dish of ajo blanco and vine leaf dolmas, and four dishes that each use a different fish: brill, coley, cod and sea trout.

The two highest-scoring chefs from Northern Ireland must go head-to-head and cook their six-course menus again.

They need to impress a panel of exacting judges: Michelin-starred chef Tom Kerridge, former Great British Menu Champion of Champions Lorna McNee, and comedian and food podcaster Ed Gamble. The guest judge is broadcasting legend Pamela Ballantine. How will she judge dishes celebrating great Britons of the past?

Only one of the chefs will triumph and go through to represent Northern Ireland at the national finals.