And in the US, retail prices for whole cashews can reach $15 per pound. But without intensive, precise processing, these nuts wouldn't be edible at all. So how exactly are cashews processed?

then add the rice or quinoa along with a little salt and cook it according to the pack instructions. Meanwhile, put the cashew nuts in a large wok (without any oil) over a medium heat and toast ...

The Accra street vendor looks at me, bemused. I'm trying to establish how the rather flimsy 30g bag of roasted cashew nuts she's selling, beside a sweltering highway in Ghana's capital ...