Chiltepin salsa is one of the defining elements of Sonoran food because the bushes that produce the chiles grow wild in parts of Southern Arizona and aren’t common to other regions. This is an all-purpose salsa that can be used for dipping, for seasoning, and as a taco sauce. A little goes a long way, so if you prefer a milder salsa, cut the amount of chiles down by a half or a third. Chiltepica is a local Tucson company that sells their chiltepin online. This recipe is from the Taste of Tucson cookbook by Jackie Alpers.