It was first offered in 1998 as a tie-in with the Disney movie "Mulan". The episode opens up with the main protagonist, Rick, in a dream sequence in which he goes to a McDonald's within his memory to experience the taste of the Szechuan Sauce for one last time. This is, therefore, assumed to be a direct collaboration with the Rick (and Morty) show.
If you miss out Saturday, some fans on Reddit have attempted to recreate the sauce: To make it, take garlic, balsamic vinegar, soy sauce, plum sake, Sriracha, ginger and brown sugar and simmer them for five minutes, stirring constantly, according to Time. Same. But here's the catch: you have to purchase an order of the buttermilk crispy tenders, and you'll only be able to get a single packet of Szechuan sauce, because McDonald's is notorious for being stingy with sauce.
The only Triad McDonald's location offering the limited-run Szechuan Sauce on Saturday is at 2241 Martin Luther King Jr.More news: India's role in US's Afghan policy unacceptable, Asif tells Tillerson
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McDonald's will gift fans with 1,000 limited-edition posters, each celebrating one of its 10 sauces, like Honey Mustard, Sweet & Sour, Creamy Ranch, and of course, Szechuan Sauce.
Buttermilk Crispy Tenders became available nationwide at participating McDonald's restaurants on September 27 and are sold for $3.79-$3.99 for a 4-piece serving.
The posters will be available at the Shippensburg restaurant. They are using this mysterious "Signature Sauce" as a ploy to get its customers interested.
If you're like Rick from "Rick and Morty" and have an unhealthy obsession with that "Mulan McNugget Sauce" that McDonald's discontinued in 1998, well, dreams do come true.