That "Mulan McNugget sauce" is coming back.

Starting Monday, 20 million packets of Szechuan Sauce will be available at all McDonald’s restaurants across the country with a qualifying purchase, while supplies last, the fast food restaurant announced Thursday.

The sauce first made its debut in 1998 when The Walt Disney Company released their animated feature film Mulan. To coincide with the film about a daughter who poses as a man to enlist in the Chinese military to save her father, they released a Szechuan teriyaki dipping sauce. After the promotion of the film, the sauce was removed. 

But the sauce truly gained notoriety after the Adult Swim science fiction comedy series "Rick and Morty" made references to the sauce in several episodes.

In one episode, Rick tells Morty that while saving the world, he wasn't motivated by rescuing his family, but rather "that McNugget sauce. I want that Mulan McNugget sauce."

McDonald's announced the return of the sauce for one day, Oct. 7. The announcement came after more than 40,000 people signed a petition to bring back the sauce. 

Fans hurried to get their hands on the limited batch, causing fights to break out at some restaurants.

Now, those who didn't get some will have another chance. 

"Last October, we truly meant well when we brought back a super-limited batch of Szechuan Sauce, but it quickly became apparent we did not make enough to meet the expectations of our fans. We did not anticipate the overnight crowds, the cross-state travel and the amazing curiosity, passion and energy fans showed," the company said in a statement. 

The company apologized to fans and hoped to make amends.

"We disappointed fans and we are sorry. To fully make amends, we felt it was important to not only bring back much more sauce this time, but to also admit our mistakes, answer questions and give fans access to the story behind the story."

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