This is an interesting sauce spotted on a DDD episode featuring this place in Reno.
The thing that I picked up on is that it has a ketchup and grape Jelly based sauce. They do a bit to jazz it up though.
Take butter / oil and brown some chopped onions, then chopped bacon. Cook down and add ketchup + grape jelly.
To make the Mahogany sauce, add liquid smoke (guessing that can be any variety, not sure).
not sure of proportions, but on show they made over a pint, less than a quart of sauce, and simmered it for 40 minutes to cook down.
This is of course a Swedish meatball crock pot sauce sounding mixture.
site is: http://goldnsilverreno.com