How Pistachios Took Over

They’re in your chocolate, your gelato, even your coffee - pistachios seem to be everywhere at the moment - bolstered by the craze for Dubai Chocolate. In this episode Leyla Kazim asks what happens when the world seems to fall in love with one ingredient. She explores how the United States came to overtake traditional producers in the Middle East to become the world's largest pistachio grower, and…