Everybody’s talking about kale, the ultimate superfood americans die for, as it seems to possess extremely powerful nutrients. Everybody wants to have it since celebs as Heidi Klum, Jennifer Aniston and Gwineth Paltrow declare they couldn’t do less about it.  Nothing new, actually. Local type, simply called ‘cavolo nero’ is very common here and it has been used in Tuscan taditional food since ages, ingredient for “ribollita” or cavolo nero soup. You can also taste it just raw, in thin slices, dressed with balsamic vinegar, aromatic herbs and oil, of course.