Preheat your smoker or oven to 225°F using oak or hickory wood for authentic flavor.
Trim the excess fat cap from the brisket to about a quarter-inch thickness and pat the meat completely dry.
Rub the brisket surface with avocado oil, then coat all sides evenly with sea salt, black pepper, garlic powder, onion powder, and smoked paprika.
Place the brisket in the smoker and cook undisturbed until the internal temperature reaches 165°F.
While the meat smokes, whisk together the tomato paste, apple cider vinegar, and coconut aminos in a small bowl to create a clean BBQ glaze.
Remove the brisket, wrap it tightly in butcher paper or foil, and return it to the heat until it reaches an internal temperature of 202°F.
Allow the brisket to rest for at least 45 minutes to ensure the juices redistribute before slicing thinly against the grain.
Steam the green beans until crisp-tender and serve them alongside the glazed brisket slices for a balanced meal.