The celebrity chef cooked a beef chilli con carne in the microwave for 40 minutes with no cover on the dish.
Radio 4's breakfast news show traditionally welcomes in famous guests to run the festive programmes.
The singer opened up during a chat with his fellow campers.
The star is now launching a new delivery-only pasta service.
Hugh Fearnley-Whittingstall admits to 'nerve-wracking' moments when campaigning on various food issues.
Hugh Fearnley-Whittingstall says there are 'no easy solutions' to getting families to eat more healthy diets.
The chef's wife is still suffering after effects of the virus.
Oliver was an active campaigner for the introduction of a sugar tax
The TV chef hosts a new contest for keen cooks.
Jools Oliver says she gets flashbacks about the near-fatal miscarriage she had before she had her most recent child, four-year-old River Rocket.
The star is looking for people 'that deserve a little bit of love'.
More than 15 years after he launched his school dinner campaign, Jamie Oliver is still criticised by turkey twizzler fans.
The TV chef said he managed to find the stolen vehicle himself before police even arrived.
Your guide on what to watch this evening.
And you thought pineapple on pizza was a controversial choice...
ITV drama Unforgotten is back while Jamie Oliver returns to the kitchen.
The couple have five children together.
The documentary maker revealed he didn't get much sympathy from his family after incident
The couple already have five children together.
The cook told her social media followers she wouldn't have got the new job without them "demanding" she had a show.
Many feel the show, which advises how to cook with just kitchen cupboard ingredients, should have gone to 'Cooking on a Bootstrap' chef Jack Monroe
They've been married for two decades and share five children.
The celebrity chef says his family have proved to be the 'best antidote in the world' during the struggle.
The TV chef wants to teach people to learn to cook for themselves instead of relying on takeaways.
The pair were appearing on Jamie Oliver's cooking show Jamie and Jimmy's Friday Night Feast.