01 -
Finely mince the garlic cloves and rosemary sprigs.
02 -
In a bowl, combine balsamic vinegar, soy sauce, brown sugar, and olive oil. Mix in the minced rosemary, garlic, and all the seasonings.
03 -
Pour the mixture into a zip-lock bag, add the steak, and shake well to coat. Refrigerate for 6 hours.
04 -
Remove the steak from the marinade and pat it dry with paper towels.
05 -
Heat olive oil in a skillet and cook the steak until the exterior is crispy and the interior is cooked to the desired level of doneness.