Tom Yum Goong

Thailand's most internationally recognized soup -- a clear, sour, and aromatic broth of lemongrass, galangal, kaffir lime leaves, fish sauce, lime juice, chili, and fresh prawns -- appears on menus in 120 countries but is most correctly prepared in Bangkok street restaurants where the fragrant steam from the broth carries the essential volatile oils of the lemongrass before they dissipate. The soup was listed by CNN Travel as one of the 50 most delicious foods in the world.