It's what every fan wants to know and we dared to ask.

The ex-SAS man, famous for swallowing just about anything to survive, didn't disappoint with his answer.

Grylls, who takes his Endeavour: Your Adventure Awaits show around the UK in October, here also tells Graham Walker about the challenges of taking the great outdoors indoors for this amazing and unique spectacle, For more show details and dates see http://www.beargryllslive.com/thetour