A chipotle pepper is a jalapeno pepper that has been dried and smoked. The peppers are then reconstituted and packed in a flavorful adobo sauce of tomatoes and various spices. It is a popular Mexican and Central American cooking ingredient that adds depth and smokiness. Chipotle chiles in adobo sauce are sold in cans, but one or two chipotles from the can go a long way. Freeze the rest in small containers or snack-size zipper-top bags.