Today at tea our Uruguayan and our Argentinian grad student treated us to traditionally prepared
mate, in the Uruguayan (straight up) and Argentinian (with sugar) styles. It was quite tasty.
Linguistic note: in the Spanish of the Rio de la Plata, an initial "y" is pronounced as "ch": hence "yerba mate" is pronounced "cheba mate". (More bizarrely, the "ll" is also pronounced "ch".)