Romanesco broccoli / Roman cauliflower is an edible flower of the species Brassica oleracea and a variant form of cauliflower that came from Italy. It is sometimes called coral broccoli or broccoflower, but the second name is also applied to green-curded cauliflower.

Romanesco can be prepared like normal broccoli.

I used it for instance in “Romanesco Bake with Olives and Tuna Béchamel Sauce”.

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Some information source: Wikipedia.