I just made these last night for the first time, and will definately be making them again!
Use whatever kind of chicken you want, I use shredded chicken from a whole chicken, but the original recipe called for breasts, or you could use a store bought rotisserie chicken if you were in a hurry, so whatever you like. Fry for 3 minutes(on one side) in a little oil with the following seasonings:
2 T chili powder
2 t ground cinnamon
2 t cumin
2 t sucanat or brown sugar
2 t salt
1/2 t black pepper
It will become slightly crispy or blackened.
I served this up with curtido (here is a basic recipe http://www.cdkitchen.com/recipes/recs/495/Curtido_Salvadoreno_El_Salvador48777.shtml) I do it pretty much like that, but I don't blanch it first. It is better the second day, so if you can prepare it the day before, even better.
I also served it with grilled poblano peppers(blacken on gas stove, or on the grill, and then put in a plastic bag or covered container for a few minutes, then peel and remove seeds, and cut up. Warning: sometimes these are spicer than others. I peeled and deseeded with my fingers and a knife, but they weren't too spicy. Sometimes this can be a dangerous move, if they are spicy and you touch the seeds, please do not touch your eyes, etc. as it may hurt, even if you have washed your hands several times :)
We also put some avocado on it, and of course served it on tortillas! I was initially skeptical about the cinnamon, but it was good! I ran out of chicken today, and ate the remaining poblanos in a quesadilla with curtido, and that was good too!
1 day ago