FWIW, Criollo is really more of a Latin/Ecuadorian type of spice mixture than it's Mexican...but I digress. There's a true hole in the wall restaurant in downtown Charleston that calls itself an Ecuadorian cuisine.
One of his better dishes is a grilled chicken breast topped with a Criollo type "sauce." He won't tell me how he makes it, but I can pick out cilantro, jalapenos, a type of chili pepper I can't place, and scallions. It's a little spicy...but my god!!
Sorry to hijack this...got me hungry!