01 -
Trim brisket of excess fat and apply mustard evenly as a binder. Season generously with pepper-forward brisket rub and refrigerate for 1-2 hours.
02 -
Smoke at 210°F on a pellet smoker using hickory pellets with a water pan underneath for 9-10 hours until internal temperature reaches 165-170°F.
03 -
Wrap brisket in butcher's paper with apple cider vinegar and beef tallow. Smoke further at 250°F until internal temperature reaches 204-206°F.
04 -
Allow the wrapped brisket to rest in a cooler for 2-3 hours.
05 -
Sauté diced onions with avocado oil, kosher salt, and unsalted butter until caramelized.
06 -
Assemble melt using sourdough bread, slices of brisket, caramelized onions, fried onions, Colby jack cheese, BBQ sauce, provolone cheese, and the top bun.
07 -
Toast assembled sandwich in a cast iron skillet with unsalted butter for 3-4 minutes, flipping once until golden and crisp.