It is a basic macaroni and cheese recipe, in that is it a roux based cheese sauce, basic macaroni, and they put cheese, lots of cheese on top before baking. They do add garlic and onions, a fair amount. It is really simple. A lot of what Matt does focuses on the belief that 'if it ain't broke, don't mess with it'. Sure they have their own tweaks, as any cook does.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"I'm Armenian...perhaps...but then again...maybe not..."