This celery-scallion relish recipe has a trick to it that sets it apart on the condiment bar: its marinated with hot, cumin-infused oil, giving the raw vegetables a depth of flavor that trumps all others. Lime juice wakes up the earthy seeds and draws out the spectrum of flavors in the scallions, celery, and cilantro. Despite the unique combination of ingredients, this recipe is at home on a wide variety of dishes. Serve this with seared, skin-on fish like bass or mackerel, piled onto a grilled bratwurst, or alongside a juicy hanger steak.