People don’t give much thought to the purple leaves in their salad mix-but maybe they should! That bitter, leafy vegetable is likely radicchio and it's kinda having a moment. There's a lot to ...

Less commonly seen is Treviso, which looks akin to Chioggia in coloring with a white core and deep purple leaves ... grapefruit salmon salad recipe? Using a bitter leaf like radicchio as the ...