It launched the Arch Deluxe in 1996, and the product flopped. The burger, intended to appeal to more sophisticated and "adult," used a mustard-mayo Arch Sauce, which the brand appeared to bring ...
Arch Sauce is a mustard-mayo combination that McDonald's debuted as a topping for the Arch Deluxe - a sandwich aimed at more sophisticated and "adult" customers - that debuted in 1996. McDonald's ...