Fans had demanded McDonald's bring back the limited-edition sauce after it appeared on an episode of "Rick and Morty" previous year.
That is, of course, until it was mentioned as Rick's primary motivation in the season 3 premiere of Rick and Morty, which led to a demand for its return.More news: Google rolls out Google Pay for safer and easier payments
"We did not anticipate the overnight crowds, the cross-state travel and the wonderful curiosity, passion and energy fans showed", McDonald's said.
A disappointed "Rick and Morty" fan looking for Szechuan sauce.
"We've worked every day since October to bring back much, much, more of the sauce our fans have been craving", the statement reads, noting the 20 million packets will be around, "while supplies last (which this time around, we hope is a while)". McDonald's tried to appease fans by bringing it back for a limited run last fall, but because the emphasis was on the word "limited", that didn't go so well. As you might recall, the sweet and sour condiment caused a stroke of trouble across the country back in October when locations didn't have enough supply to meet the demand.More news: Jessie Diggins bringing home cross-country skiing gold
The dipping sauce comes free with orders of Buttermilk Crispy Chicken Tenders, but customers may also be able to purchase the limited-edition packets for their fries or burgers - depending on each restaurant's sauce policy.
In the show, time-traveling scientist Rick Sanchez admitted that his sole motivation in life is "finding that McNugget sauce" - and that the cult show would continue as long as it takes until he finds the sauce.
Presented in the style of Serial and other investigative podcasts, McDonald's said that it had no idea that Rick and Morty would namedrop a sauce that many people working at McDonald's had never heard of. And how will the sauce be made available again?More news: Air strikes kill almost 200 in Syria enclave