Ingredient

Broccoli rabe

Not broccoli at all but a turnip relative, grown for its leaves, stems and small budding heads. Assertively bitter, which garlic, chilli and a great deal of olive oil exist to balance — blanching first takes the hardest edge off.

Sourcing
Italian groceries and better greengrocers, mostly in winter. Sold as rapini or cime di rapa depending on whose shop it is.
Varieties
Rapini, Cime di rapa, Spigariello
Quality cues
Slim stems, tight unopened buds, perky leaves. Yellow flowers mean it has bolted and turned harshly bitter.
Substitutions
Turnip tops, Mustard greens, Broccolini, much milder
Storage
Refrigerate in a bag, unwashed, and use quickly.
Shelf life
3-5 days refrigerated