My wife recently found a cheese powder at WinCo that is neither unpleasantly salted nor sugared. It does make a good sub for the Kraft M&C we all grew up with (OK admit it-- That is a taste memory we all like).
I was recently appalled by the Kraft stuff 'cos sugary... They must have changed the recipe because I don't recall sugar as having been a primary ingredient on said box before now but it is there now.
Anyhow...
That is what we use to do quick & dirty M&C- w/ the addition of a little good pasta & the Kraft box ratio of butter/milk/cheese powder pretty darn good.
So that's my dirty secret.
Don't tell on me.