The condiment, which came with a packet of wasabi sauce, was originally part of a publicity campaign for the animated Disney movie “Mulan.”
“I just bought a really old car. While cleaning it, I found a packet of this sauce,” the seller, identified on the site as mavericmedi, said in the description of the product.
“After watching the recent episode of ‘Rick and Morty,’ I went online to see if it was worth anything. Turns out it was.”
A McDonald’s spokesperson wouldn’t say whether the fast-food giant has any plans to bring back the sauce, but the company isn’t ruling it out, USA Today reported, especially since another “Mulan” film, this time a live version, is set for release next year.