Preheat Traeger grill (or smoker of your preference) to 180˚F. Once preheated, make sure to let it sit, lid closed, for 15 minutes before adding the meat.

Season the brisket all over with BBQ rub.

In a small bowl, stir together beef broth, apple cider vinegar, and Worcestershire sauce for the mop sauce. Set aside.

Place the brisket on the grill and smoke for 3 hours, applying mop sauce with mop brush every hour.

Increase temperature to 225˚F and continue to cooking, applying mop sauce every hour or so. Once an instant-read meat thermometer reads 204˚F when inserted into the thickest part, remove from grill and wrap in foil.

Let rest for at least 30 minutes to 1 hour.

When ready to serve, slice against the grain and serve with your favorite BBQ sauce.