In a bowl mix together the Slap Yo’ Daddy beef rub, black pepper, and instant coffee.
Tomahawk Steaks
Let the tomahawk steaks come to room temperature for about 1 hour.
Preheat a grill to 275 degrees F (135 degrees C) with a cold zone (indirect heat) and a hot zone (direct heat).
Brush the steaks with canola oil then apply a medium coat of the coffee rub.
Place the rubbed tomahawk steaks onto the preheated grill in the cold zone (indirect heat). Add two hickory wood chunks to create a smoke flavor.
Smoke the tomahawk steaks until the internal temperature is about 110 degrees F (44 degrees C).
Move the steaks over the hot zone (direct heat) to get a char.
Brush on the melted butter using a few rosemary sprigs tied together as a brush. Remove when medium-rare, about 125 degrees F (51 degrees C) or the doneness you like.
Rest for 15 minutes.
Add the barbecue sauce to the remaining butter and reheat.
Serve the ribeye steak sliced with some butter barbecue sauce on the side.