We developed these sandwiches after a local favorite hangout closed down- these sandwiches were our standard order every time we went in, and now we make them regularly at home. The chicken method and seasonings are from Aroostook's Blackened Chicken, with a few minor tweaks. She's right when she says turn off the smoke detector, and I agree with her recommendation of using a cast iron skillet. I ruined one of my good skillets making this the first time- it's now a dedicated blackened chicken skillet. But the cast iron works MUCH better! I usually end up doubling the seasonings, putting them in a shaker container to sprinkle generously over the chicken and veggies.