Preheat your Traeger Grill to 225* with the super smoke feature.
Season your steak by first applying a binder of oil and then seasoning all over.
Add your Meater probe to the meat and pair it with the app.
Set the desired finish temperature to 135*.
Place the steak in the preheated grill and cook according to the Meater directions.
While the steak cooks, make the compound butter by combining the butter, cilantro, chiles and salt and mix until well blended.
Transfer the butter to a piece of Saran Wrap and roll into a log.
Refrigerate or freeze the butter until the steak is cooked.
When the steak has reached 120*, pull it from the grill and tent it with foil.
Heat up your grill to super hot and use Grill Grates to get them super hot.
Pull the steak from the tent and place on the hot grates to sear.
Cook 90 seconds per side (rotating for best results) or until the Meater Thermometer prompts you to remove the meat (130* usually).
Put the steak on a cutting board and tent with foil.
Add three 1/4 inch slices of the prepared compound butter log to the steak while it rests.
Once the steak rests for 10 minutes, slice it against the grain and serve.