“It looks like a fleshy purple flower, as fresh as if it had been specially created to bring spring to the dinner table in winter,” wrote Ada Boni in her Regional Italian Cuisine cookbook, while Marcella Hazan calls it the “most magnificent vegetable.” I have to agree. Radicchio might just be my favourite vegetable. It’s beautiful to look at, it’s incredibly versatile — you can grill it, roast it, braise it, have it raw or even in a cake — and that is before I even go into how delicious it is with its slightly bitter, juicy leaves.