These culinary chameleons can be braised, sautéed, or enjoyed raw in salads. Here’s how to choose and use them.

Its leaves retain their purple color when cooked, unlike many other purple vegetables. Purple kale is a type of kale ...

ruffly leaves known as curly kale; a similarly textured variety with red or purple stems known as Russian or red kale; and a flatter, darker blueish-green variety known as lacinato, Tuscan or ...