Ok, I missed this article when it first came out. Here: https://aht.seriouseats.com/archives/2012/04/the-one-dollar-poor-mans-big-mac-worth-it-or-not.html?ref=search
The other day I ordered a McDouble ($1) with Big Mac Sauce (.20). Wow. I liked it better than a Big Mac, still came with pickles, none of that pesky lettuce and HOT and fresh.
It has changed my mind about the Big Mac. My new junk food favorite.
What else have you added Mac sauce to?