For my Tuscan family, cavolo nero, Tuscan Lacinato kale, is not a trendy vegetable. It is not a magical superfood, nor just a healthy, gluten-free, vegan ingredient to make chips with.
Cavolo nero is the most common, everyday ingredient in winter. You find it at the market, its waxy, dark green leaves hoarded in bunches next to other representatives of the Brassica genus. You spot it in every vegetable garden since the end of summer. It’s then harvested through autumn and winter, though it’s at its best after the first frost, which tenderizes the hard fibers of its leaves and makes it sweeter.