Combine all this in a slow cooker and then add enough water to mostly cover the meat. I started with hot water this time, because I started it cooking a little later than I'd planned on. In my new slow cooker, which cooks hotter than the old ones, I started this at 1pm on low and it was done by 6:30. The water was pretty much at a simmer nearly the whole time. If you have an older slow cooker, I'd do 10 hours on low or 5-6 hours on high.

Get some good rolls for the sandwiches. Take the meat out and slice it as thinly as possible, then layer on the bread. Serve with the sauce and dip the sandwich as you eat.