the chef that I was staging under right now has been employed in wisconsin area. I don't have the name of the restaurant, but do visit there, it should be something what you are looking for.
Based on his recipes and my mom's combined, I did post a pictorial guide on one of the other forums that I lurk on. chole
There are atleast 2 others (one for tandoori chicken and other for vindaloo pork) also if you check out their EGCI section, there are atleast 2...