‘Women don’t like to crunch too loudly in public. And they don’t lick their fingers generously and they don’t like to pour the little broken pieces, and the flavour, into their mouths,’ according to Indra Nooyi, the CEO of the Doritos parent company, PepsiCo. Photograph: iStock

In the world of crisps, there are only handful of products that are obviously created for specific consumer– flame-grilled, meaty ridges for the most (...)