[many thanks to Forrest Beck for this post]
I just bought SaltShaker Spanish-English-Spanish Food & Wine Dictionary - Second Edition, a book you may want to make your readers aware of since I have personal experience using it. It is another dictionary, but unique in that it focuses largely on Argentinian foods. The author is Dan Perlman who runs saltshaker.net, a great website for anyone who enjoys trying to locate good food and wine in Buenos Aires. I bought the first edition when Nicole and I lived in Argentina for 4 months in 2007/08. This updated version contains 3000 more entries, but most importantly comes in a Kindle version so I can use it on my iphone/iPad in BA (though I'm not toting my iPad around BA anytime soon).
