Crush/chop the garlic and add it to a large ziplock bag.
Pour in the coffee, soy sauce,Worcestershire sauce, apple cider vinegar, olive oil and maple syrup. Then measure in the black pepper and dried rosemary.
Squish everything about so it is well mixed.
Add the steak, squeeze out most of the air and zip the bag up.
Turn the steak over a few times so it is well coated in the marinade.
Place the bag on a plate and then refrigerator at least 8 hours and unto 24
when you are ready to cook, remove the steak from the fridge to come to room temp.
Pre-heat the oven to 210ºC/190ºC fan forced/Gas mark .
Place a large fry pan (one that can go into the oven) over a very high heat.
Once it is smoking hot. Add the steaks and brown on both sides for about a minute.
Transfer the pan to the oven and cook for 5-6 minutes. (No long or it will be tough.)
Remove from the pan and allow the steak to rest uncovered for at least 5 minutes,
Slice thinly across the grain.
Sprinkle with chopped parsley and some flaked sea salt.