Preparing your steak for grilling. There are also certain preparatory steps that are critical to ensure the best results. If you get your steak from a good butcher, it should already be aged and rather dry to the touch—as it should be. But if you buy your steak in a supermarket, it is likely to be rather wet, in which case it helps to air dry it in the fridge for a few hours or even overnight. Place the steak on a rack or—if you don't have a rack—you can prop it up with two chopsticks, over a plate to catch any blood that may drip out. This will allow air to circulate around the steak, top and bottom, so it dries evenly. Even so, turn the steak every so often to ensure even drying on the outside and circulation of the blood inside the steak. If you air dry your steak for more than a few hours, cover it loosely with a towel to prevent the meat from drying out too much.
Even more important than air drying is tempering the meat: making sure that the meat is room temperature before you cook it. If you plan to eat the meat the same day you buy it, just leave it out until you plan to cook it (unless you live in a tropical or sub-tropical climate). But if you have refrigerated the meat, take it out of the fridge an hour or so before you plan to grill it, so that it come back to room temperature. This operation will ensure more even cooking.
Grilling. Now get your grill nice and hot. (Some sources will warn against excessive heat, which supposedly can toughen the meat, but I have not found this to be true in practice, at least not with good quality meat.) Wood is the fuel of choice here—oak is traditional—or charcoal. If you must, a gas grill will do, although the final product will lack the characteristic smokey flavor of a true fiorentina. But don't sweat this too much; I make do with a gas grill myself. If you have a smoker box, pre-soaked chips of oak or another a mild wood will add character to your dish. Place the steak on the grill. If your meat is cut thick as it should be, lower the heat a bit, to 'medium-high', and grill it for five to ten minutes on each side, depending on the thickness of the steak (See notes below). If you like cross-hatched grill marks, place the steak across the grates diagonally, starting at 'ten o'clock'. Then, halfway through the cooking time for this side, turn the steak to 'two o'clock'.
When you turn the steak over to cook on its other side, you will see the lovely cross-hatched grill marks that are the pride of so many 'grillmeisters' (see first photograph above). Now season the steak liberally with salt as the steak cooks on the other side, repeating the two and ten o'clock positions if you like. Turn the steak over and season it again on its just-cooked side. Finally, for a 3-inch monster, you can and should grill the steak on its flank for another five minutes or so, using the bone to prop the steak up. This will drive the blood away from the bone for more even cooking.
The total grilling time for a 3-inch monster fiorentina will be about 25 minutes (see Notes below for details on cooking times and testing for doneness.
Resting. After your steak is done, remove it from the grill and let it 'rest' for about ten minutes. This resting is another crucial step (perhaps the most crucial of all) that ensures that the meat will remain juicy when you carve it. Use a rack or chopsticks, just as you did for the air-drying, to ensure circulation all around the steak; this avoids the crust getting soggy underneath.
Carving and Serving. A Florentine steak is too big to serve individually. It is typically carved up, first by removing the filet and then the contrefilet from the T-bone, then each against the grain. Each diner helps themselves to as much steak as they want. Many people serve the meat with lemon wedges, but as far as I'm concerned a sprinkling of salt—and maybe pepper—is all this steak needs!
