In a mixing bowl, combine olive oil, garlic, cumin, cilantro, lime juice, salt, sugar, and pepper. Mix well.
Add the skirt steak and coat with the mixture. Let it stay overnight.
Heat-up your grill and then grill both sides of the steak until it turns medium rare. Do not grill for a long time so that the meat will not get tough.
Remove the steak from the grill and then let it rest. Slice the Carne Asada into desired size.
Serve as an ingredient of quesadilla, tacos, or burritos. You can even eat this with rice.
Share and enjoy!