Trim the brisket, leaving about ¼ inch of fat for moisture retention.
Season liberally with coarse salt and black pepper, covering all sides evenly.
Preheat the smoker to 225°F (107°C) using post oak wood for an authentic Texas flavor.
Place the brisket on the smoker with the fat side up. Smoke for 6-8 hours until the internal temperature reaches 165°F (74°C).
Wrap the brisket tightly in butcher paper or foil and continue smoking until the internal temperature reaches 203°F (95°C).
Remove from heat and let rest for at least 1 hour before slicing against the grain.