I think I've had one of those before.. It was a couple of years ago but from what I remember it was pretty good.
The Magic is In the Hole! Voodoo Doughnut - The Magic is in the Hole!!! (RIP Howling Frog and Jiffy Squid)
dennys had a bacon sundae. it looked so gross but so delicious at the same time. i never got to try it.