Add all of the marinade ingredients to a medium bowl and whisk together.
Place skirt steak in a large Ziploc bag, then pour marinade into the bag. Seal and place in the refrigerator to marinate overnight and the following afternoon (I marinated mine for roughly 18 hours). If you are crunched for time, you can marinate the meat 4-5 hours.
Once ready to cook, remove the skirt steak from the marinade and let sit for 10 minutes.
Heat grill or grill pan over high heat. Once hot, add meat and grill 3 minutes per side, until charred on the outside and cooked to medium-rare or medium.
Remove the meat from the grill or grill pan and rest for at least 5 minutes.
Cut the meat against the grain and serve hot.
Notes
Recipe adapted from Hilda's Kitchen Blog.
Recipe by sweet caroline's cooking at https://sweetcarolinescooking.com/2021/05/05/sure-to-be-a-winner-marinated-carne-asada/