This elongated variety of red chicory family is tender and leafy. It has the characteristic bitterness of chioggia, but the leaves are more like lettuce. The prominent bitterness of chicories is the perfect base to be contrasted with equally bold acidic and nutty flavors. Try grilling or braising and dressing heavy in salts, fats, and acids. Slice up Treviso Radicchio finely and add it to your salads for a pop of color and bitterness.