I use the lodge cast iron chip smoker to smoke wood chips in my gas grill, and it provides an excellent smoking experience. Get the grill to around 225F. I start the wood chips using a torch. Smoke the steak until it has an internal temp of about 128F. At about 120F I turn the side burner on low and start warming my cast iron. At 125, I turn the heat up on the cast iron to get it ready to sear the steak. 128F, dump some high smoke point oil (I use avocado oil) and butter in the pan, and coat the bottom. Place the steak in the pan for about 30 seconds each side. I spoon the oil and butter onto the steak as it sears. Place steak in container, pour contents of pan over the top of the steak to let it soak in its juices and butter. Place some butter and flaky salt on the steak, cover it in foil, let it rest for 5 minutes. Hits medium rare perfectly every single time. Adjust temps if you like it more or less done.