Do you have a cast iron skillet or griddle? Put that on the sear grate on the handles of the charcoal basket. Crank the heat to over 500F dome (will be about 800F in the pan). Let the pan get smoking hot, then drop the steak in (heavily rubbed with Bayou-ish). Use a steak that's at least 1 1/2" thick. Stand back as it will smoke profusely and be pungent! After about 30 - 45 seconds, flip the steak over (be very careful, use the longest tongs that you have!!) and go another 30 - 45 seconds. Remove the steak. Unless you have a serious pair of high temperature gloves, leave the pan alone! Check steak temp for desired doneness. If it needs more cooking time, put your lower grate in and roast the steak there (or if you're using the basket splitter, slide the pan off the direct heat. Be mindful, if you over do the blackening crust, it will get very bitter. Let the steak rest for 5 minutes then hit it with a serious knob of butter. If you want, you can mix in a tiny bit of the Bayou-ish rub into the butter for a little extra kick. Go easy on it - you want to be able to taste the meat - LOL!
Here's some pics from a blackened porkchop dinner that I did some time ago.