Step 1
Combine the marinade ingredients in a saucepan and simmer over low heat for about 10 minutes until thickened and reduced by about half. Remove the garlic cloves. Let cool. Reserve half of the sauce.
Step 2
In a plastic bag or container with a lid, cover the steaks with the remaining sauce and marinate for 2-6 hours in the refrigerator.
Step 3
Remove the steaks from the refrigerator about 30 minutes before you are ready to grill and pat dry and bring to room temperature. Preheat the grill to 600°F.
Step 4
Insert a Spark temperature probe into each steak. Grill the steaks on each side for 4-5 minutes for medium-rare steak, until the internal temperature reads 125°F on the app. Let rest, tented with aluminum foil for about 8 minutes.
Step 5
Serve with reserved sauce, flaky sea salt and freshly cracked pepper.