At Addis Ababa airport, visitors are greeted by pictures of golden grains, minute ochre-red seeds and a group of men gathered around a giant pancake. Billboards boast: "Teff: the ultimate gluten-free crop!"
Ethiopia is one of the world's poorest countries, well-known for its precarious food security situation. But it is also the native home of teff, a highly nutritious ancient grain increasingly finding its way into health-food shops and supermarkets in Europe and America.
Teff's tiny seeds – the size of poppy seeds – are high in calcium, iron and protein, and boast an impressive set of amino acids. Naturally gluten-free, the grain can substitute for wheat flour in anything from bread and pasta to