Step 1In a large bowl, thoroughly mix the chipotle, garlic, onions, cumin, green onions, cilantro, parsley, tomato puree, lime juice, salt, pepper and oil.
Step 2Rub the marinade all over the skirt steak, then place the steak in a large, resealable plastic bag with the marinade and refrigerate overnight.
Step 3Remove the bag from the refrigerator one hour before grilling to allow the steak to come to room temperature. .
Step 4Heat a grill over medium-high heat. Grill the steak about 2 to 3 minutes per side for medium rare. Set the steak aside until cool enough to handle, then cut it into a half-inch dice or slice it against the grain into 1-inch slices. Serve immediately.