I'm a HUGE fan of McDonald's Hot Mustard Sauce. It's my top choice, if they don't have hot mustard, I will switch my entire order for something that doesn't require dipping. I have been really lucky out here, though, most of the time it's available, I do cross my fingers when I order because that well could run dry any day. So, to avoid the mustard sauce draught, I decided to come up with my own version. This way when I open that takeout bag and the mustard is missing, I'm already covered!