Chef Michael Symon certainly knows a thing or two ... adding that the dish featured a "kind of POP mustard. It's cold, pickled, and fermented mustard seeds that we fold into the potato salad.

Oh, and the pickled mustard seeds he specs? Pop Mustards makes them right here in Old Brooklyn. Pop Mustards is a company ...

In fact, celebrity chef and Cleveland native Michael Symon ... [and] a really great mustard." Symon is even the co-owner of POP Mustards, a Cleveland-based, whole-seed mustard brand he loves ...