"My personal variation uses demerara sugar instead of brown sugar. And it is really good."

"Made two substitutions: turmeric instead of dry mustard, and half-and-half instead of evaporated milk. Used the full quantity of everything. Turned out great, even considering I flubbed on the salt for the sauce and accidentally put in about twice as much as I should have. A tad bit grainy, but not off-puttingly so. Still beats the crap out of the box.

One of my fave comfort foods is tuna mac and cheese, so one of these days, I will try some fresh-seared tuna in this just to see if it matches up to the box and can version.