Mix all ingredients except the steak, in a bowl. Score steak (1-1 1⁄2” parallel scores, repeat to make a diamond shape – do this on both sides). Marinate steak, preferably overnight.

Grill steak to desired doneness on grill or in oven broiler. Meanwhile, bring marinade to a boil for about five minutes.

To serve, slice the steak in thin strips on a diagonal. Serve with warm marinade and garnish with chopped cilantro.