These skirt steak tacos start with a simple marinade that packs in bold, zesty flavor. The tender, juicy steak is perfect for piling into warm tortillas with all your favorite toppings.
Marinade. Combine 1/3 cup olive oil, 1 lime, 3 cloves garlic, 1 teaspoon salt, 1 teaspoon cumin and 1/2 teaspoon pepper in a large bowl. Add the steak and marinate for at least 20 to 30 minutes at room temperature or up to 24 hours in the refrigerator. Set out 30 minutes before cooking.
Grill. Use tongs to transfer to a preheated grill and cook until it reaches desired doneness (about 3 to 4 minutes per side over high heat). Remove from grill and allow to rest 5 minutes before slicing. Cut steak against the grain.
Prepare taco toppings. Prep desired toppings while steak is resting. I like to add diced tomatoes, avocado, cilantro and onions with the cilantro lime crema (recipe in notes).
Assemble tacos. Place skirt steak on top of warm tortillas. Add desired toppings and serve while warm.
Notes
Make ahead: This marinade can be made up to 3 days in advance, however I don't recommend marinating the meat longer than 24 hours. Typically I like to add the meat in the morning and grill that evening. Storing: Discard any leftover marinade and do not reuse. You can store leftover meat in a covered container in the refrigerator up to 3 days. Toppings: The additional toppings are not included in nutritional value. Feel free to add as you prefer.