Why so expensive? It's an artisanal bread made with organic flours like quinoa, chia, and oats, toasted malt, and rock salt. But what really drives up the price is the addition of silver and gold ...

In 2008 he created the most expensive bread in Britain - an almond and Roquefort sourdough that was sold for £15 a loaf at Harrods, which Paul describes as the "Rolls-Royce of loaves!" ...