I am a Swede thats been living here since 2007, but will move back to our beloved north with porteña wife and 2 kids in a couple of months.
Some Scandinavian related recomendations are:
Olsen(restaurant with smörrebröd, scandinavian brunch, vodkas and snaps/aquavit i think)
Christmas bazaar(Swedish church)kaviar, hårdbröd, lingonsylt, pepparkakor, glögg etc.
Santa Lucia(Swedish church)
Club Sueco restaurant(Same building as the Swedish embassy)
Scandinavian rowing club in the Tigre delta(only read about the club)
Obera(Swedish/Scandinavian settlement in Misiones province. Never been there, but hopefully one day).
Check Scandinavian embassy webpages, they usually have information for upcoming music, film, theater etc thats related to Scandinavia.
Disco, supermarkets sometimes sell Carlsberg beer, which I normally wouldnt consider a favourite, but after some years with not so great Argentinian/Brazilian beer tastes like heaven.
Snus and tobacco can be ordered online from
Northerner . Delivery usually takes up to 4-5 weeks. ~40 US$ for a roll of ten. Don´t order more at once and it gets delivered to you door(hopefully).
Ha en bra dag!