Traditional coleslaw seasonings--sweetened vinegar and celery seed--are tossed with thinly sliced radicchio and scallions for this new rendition of a familiar favorite.
In a large bowl, combine vinegar and sugar; stir to dissolve sugar. Whisk in oil, and season with salt and pepper.
Add radicchio, scallions, and celery seed to bowl. Toss to combine, and let stand 10 minutes to soften. Toss again, and serve.