6/6. How do you make the ultimate mashed potato? Heston Blumenthal demonstrates. Richard Johnson visits Italy's republic of pesto, Richard Corrigan launches a probe into fruit and presenter Adrian Chiles cooks Croatian duck. Plus a competition to find out who in the team is the best party caterer.
Series producer Dermot Caulfield ; Executive producer Gary Hunter www.bbc.co.uk/food Heston Blumenthal 's mash: p31; The Inside Story: p80