Step 1 In a large bowl, thoroughly mix the chipotle, garlic, onions, cumin, green onions, cilantro, parsley, tomato puree, lime juice, salt, pepper and oil.
Step 2 Rub 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.