01 - Pat the brisket dry with paper towels and season all sides evenly with kosher salt, black pepper, smoked paprika, brown sugar, thyme, and oregano.
02 - Heat olive oil in a large skillet over medium-high heat and sear the brisket for 3 to 4 minutes on each side until well browned.
03 - Arrange sliced onions, carrots, chopped celery, and minced garlic in the bottom of a slow cooker.
04 - In a small bowl, whisk together beef broth, dry red wine, and tomato paste until fully blended.
05 - Place the seared brisket atop the vegetables, then pour the liquid mixture over the meat.
06 - Cover and cook on low heat for 8 hours or until the brisket is tender enough to shred with a fork.
07 - Transfer the brisket to a cutting board, allow it to rest for 10 minutes, then slice against the grain.
08 - Skim excess fat from the cooking liquid and serve the sliced brisket with the vegetables and spoon the pan juices over the top.