This is my favorite way to have a tender, great tasting cheap cut of steak.
1/2 cup olive oil
1/3 cup soy sauce
4 scallions, washed and cut in 1/2
2 large cloves garlic
1/4 cup lime juice
1/2 teaspoon red pepper flakes
1/2 teaspoon ground cumin
3 tablespoons dark brown sugar, palm sugar or Mexican brown sugar
Around 2 pounds of inside Skirt steak
Put all ingredients of marinade into blender. Blend smooth. Marinate steak in marinade in zip lock bag for 1 hour minimum. BBQ (preferably over charcoal or wood). I prefer the palm sugar for this (Asian grocery store).