Preheat your smoker to 225°F using oak or hickory wood for an authentic Texas flavor profile.
Trim the excess fat from the beef brisket, leaving approximately a quarter-inch fat cap to keep the meat moist.
In a small bowl, combine the sea salt, black pepper, garlic powder, and onion powder to create a dry rub.
Apply the rub generously to all sides of the brisket, pressing it firmly into the meat to ensure it adheres.
Place the brisket in the smoker and cook until the internal temperature reaches 165°F and a dark crust has formed.
Remove the brisket and wrap it tightly in peach butcher paper before returning it to the smoker.
Continue smoking until the internal temperature reaches 203°F and the meat feels tender when probed.
While the meat rests, whisk together the tomato paste, apple cider vinegar, maple syrup, and smoked paprika in a saucepan over low heat.
Sauté the green beans in olive oil over medium heat for 5-7 minutes until they are bright green and tender-crisp.
Allow the brisket to rest for at least 30 minutes, then slice against the grain and serve with a drizzle of the glaze.