Rick and Morty's Rick Sanchez once said (in the season three premiere) that the show was all about finding a one-time McDonald's promotional sauce from the 90s.
"That Mulan Sezchuan McNugget sauce Morty, that's what this is all about," he said, "My series arc – that's gonna take us all the way to the end. Nine more seasons until I get that Szechuan sauce, Morty. 97 more years."
Since then, fans of the Adult Swim show have spent thousands buying the discontinued dipping sauce online and its co-creator Justin Roiland has been gifted a tub from the fast-food chain. And now, a YouTube star has even worked out how to make your own.
Oliver Babish is the star and creator of "Binging With Babish", a channel dedicated to recreating meals and snacks from anime, films and television shows.
Enlisting a "spy photo" taken at McDonald's HQ of the Szechuan recipe and a "real sample" from the limited run made available to the public, he was able to recreate the sauce.
He said previous efforts to clone "the fabled McDonald's Szechuan Sauce were wild, flailing shots in the dark".
"Pathetic and meager attempts to recreate a long-lost condiment out of scanty information and back-alley sources," he explains:
"But thanks to a very kind man named David Wasman, I have procured a sample of the genuine article."
In his six-minute video, Babish teaches viewers how to make a rendition of Szechuan Sauce – that is "near-identical to the Mulan-inspired goop from 1998".