In 1998, McDonald's offered Szechuan sauce to accompany chicken nuggets. It was a limited-ti...  ...to promote the movie Mulan. In April, the bygone sauce was the subject of a joke on the show Rick and Ma...  ...ty. Since then, the internet became obsessed with Szechuan sauce ....

Who knew that holding on to your old unused McDona...  ...new that holding on to your old unused McDonald's sauces was a worthwhile investment? One eBayer sure disc...  ...discovered the perfect time to sell his old Mulan Szechuan Teriyaki Dipping Sauce (available only back in...