In Season: Radicchio's peak season lasts from January to April, although most specialty grocers carry it year-round.What to Look For: This member of the chicory family comes in several varieties, with two types being most widely available in the United States: Treviso and Verona. Treviso leaves are oblong with pointed ends and grow in small, tightly packed heads. Verona radicchio grows in loosely packed round heads similar in shape to butter lettuce. Both varieties have purple leaves with white ribs. Choose radicchio with crisp leaves and no brown spots. How to Store: Keep radicchio in a tightly sealed bag in the refrigerator for up to one week.
Paper-thin slices of Vidalia and red onions figure prominently in this contemporary take on a traditional steak house salad. The two onions are mild enough to eat raw, but they become even more tame after soaking them in ice water, a process that helps remove bitter compounds.