01 - Preheat oven to 300°F. In a small bowl, combine salt, pepper, smoked paprika, brown sugar, garlic powder, onion powder, and thyme. Rub the mixture all over the brisket.
02 - Heat olive oil in a large oven-safe pot over medium-high heat. Sear brisket on all sides until browned, approximately 3–4 minutes per side.
03 - Pour beef broth around the brisket, cover pot tightly with a lid or foil, and transfer to the oven. Braise for 4–4.5 hours until the beef is fork-tender.
04 - Remove brisket from the pot and let rest for 15 minutes. Shred using two forks, then mix with barbecue sauce.
05 - In a large bowl, whisk together mayonnaise, vinegar, mustard, sugar, salt, and pepper. Add cabbage and carrot, toss to coat. Refrigerate until ready to use.
06 - Lightly toast slider buns if desired. Pile shredded brisket onto each bottom bun, top with coleslaw and pickle slices, then add the top bun. Serve with extra barbecue sauce if desired.