Combine all the ingredients for the marinade. Mix well. Add the steak and marinate for 20 – 30 minutes (depends on the size of your meat) at room temperature.
If you are making chimol, combine all the salsa ingredients in a small bowl. Stir and mix. Season with salt. Set aside and let it sit for at least 10 minutes.
Preheat a grill or grill pan to medium-high heat.
Grill the steaks until charred on both sides and cooked to medium-rare doneness, about 4 – 6 minutes per side. Remove from the grill or grill pan and let rest on a cutting board for 5 minutes.
When ready to serve, slice the steaks and serve with chimol if using.