For those of you not familiar on the backstory......
In June of 1998, McDonald's released the Szechuan nugget dipping sauce for a limited promotional run.
On April 1st, 2017 the cartoon "Rick And Morty" mentioned the sauce in a dream sequence. The created a huge viral demand for the sauce.
On October 7th, McDonald's brought back the Szechuan Sauce for one day only. Long lines ensured, one man in L.A. was actually stabbed. Mayhem.
It's... back. https://t.co/wVO31GxFT5
— VICE (@VICE) February 22, 2018
Monday February 26th most McDonald's restaurants will get a limited supply of the sauce. And then once again - it's gone.