ACCRA, SciDev.Net] In Ayigbe, a rural community in Ghana's Bono Region, 35-year-old Michael Kyereme paid off a university debt of GHS 3,500 (US$335) in just three months.

Preheat oven to 200°C (180°C fan) mark 6. In a large frying pan, mix together 200g unsalted cashew nuts, 1tsp Marmite, 1tsp ...

At first, I thought no, thanks, I don’t need this weird nut salsa mingling with my tacos and enchiladas. But, after one particularly tasty batch, I found myself craving the salsa—all the time. I ...