Michael Anthony, acclaimed chef of Gramercy Tavern, came to Queens to grill a feast with ingredients culled from the Public Farm 1 installation in MoMA’s PS1 courtyard. The architectural invention is itself a wonder: a self-irrigating agricultural system that launches majestically beyond the towering walls of the courtyard and into the Queens skyline. But the real star of the evening was the cavernous charcoal grill, fired up for a fitting send-off to outdoor cooking season.