Just found a description of it. Never heard of Widmer.

Here is a link that might be useful: North Shore

Thanks, Ginger. That's my post at chowhounds - see how desperate I am to find a recipe for their mac 'n' cheese? I looked up Widmer's cheese but I don't know if I want to pay that much for cheddar cheese :) Think I'll see if Bon Appetit will get the recipe. Ann

If you find it, be sure to post it! Good luck!!!