Pandan leaves
Meet pandanus amaryllifolius, a well-known face in the South East Asian food circuit. Usually appearing at foodie taste parties alongside coconut milk, pandan's role is to give dishes a heady scent and flavours a long finish. It's very distinct as a flavour, though, so it escapes comparisons to other foods. I can't say it's anything like basil or coriander or curry leaf or lemongrass. However, if you try to imagine an open field or a forest in South East Asia with lush vegetation, you might be able to guess at the taste of pandan. In fact, the closest I can get to describing pandan's scent is this: it's what the tropical rainforest in Singapore smells like after a heavy rain shower.