They’re breaking out the  Dom Perignon at 3 E. 52nd Street. La Grenouille, the romantic, last surviving outpost of the city’s old-school French-cuisine era, reopened on Friday following a four-and-a-half months shutdown due to a gas leak.

The Post reported back on Sept. 27 that the famous frog was shuttered in June by Con Ed when new gas meters detected a leak. Con Ed, the FDNY,  the Department of Buildings and restaurateur Philippe Masson subsequently pointed fingers at each other to explain the long delay in reopening.

An insider credited our coverage for helping to break the logjam. Longtime regulars are thrilled.

We’re happy, too, that  the great Midtown institution is back to live another day.