Serves 4 Prep Day: Place the skirt steak in a 1-gallon freezer bag.
In a small bowl, mix together the marinade ingredients.
Pour the marinade over the steak pieces in the bag.
Remove the air from the bag, and seal. Squish the bag gently to coat the steak in the marinade.
Place the bag in another 1-gallon freezer bag.
Remove the air, seal, and freeze until needed.
Thaw the steak in the refrigerator overnight.
When ready to cook, heat the grill to medium-high heat.
Remove the steak from the freezer bag, and discard the bag and leftover marinade.
Grill the steaks for 3 minutes per side or until they are cooked but still pink in the center.
Transfer the steaks to a platter, tent with foil, and let them rest for 10 minutes.
Slice the steak against the grain, and serve.