Herb, ya fell down on the job. To more directly answer Jim's query, a "chee-pote-lay" is a smoked chili. They get the same properties as other smoked and dried herbs, making them popular for sauces, pizza toppings, etc. But so far I haven't heard about them in magic brownies.
As for the Chipotle's chain of quasi-fast food restaurants...haven't trieds them yet, heard good thngs about them, and they are (dunt-dunt-dahhhh!) owned by McDonald's.