Can't believe no-one's metioned asparagus. The Peruvian stuff's the best, enough of that and you can start leaving your arm warmers at home.
Cashew nuts do the job well for me though.
Edit. However, if this sort of thing bothers you:
International Trade
Many nut producing countries are in the Majority World and the sector is one in whichthe precarious nature of international trade can have a significant effect on communities which depend heavily on one product for their income. According to a BBC article, in 2001 a small rise in the world production of shelled nuts, from 14,000 to 16,000 tons, resulted in the price of brazil nuts crashing, with devastating effects on the communities in Bolivia which harvested the product.(4)
In such areas, a change in the global market price of a single product can have a huge impact on the food security of local people.
According to FAO statistics, the top ten cashew nut producer countries in 2005 included Benin, Guinea-Bissau, Cote d'Ivoire and Mozambique,(5) all of which were also ranked in the 15 countries with the lowest Human Development Index in the same year.(6)
Such statistics give some weight to Triodos Bank's assertion that the nut industry "exemplifies some of the inherent inequities in global trade".(7)
clicky for more