01 -
Coat the brisket with yellow mustard and evenly sprinkle with barbecue rub. Refrigerate for 1 to 2 hours to marinate flavors.
02 -
Preheat smoker to 210°F. Smoke the seasoned brisket using hickory pellets for 9 to 10 hours. Wrap brisket in butcher’s paper and continue smoking until fully tender.
03 -
In a pan over medium heat, cook finely diced onions until golden brown and sweet, stirring occasionally.
04 -
Layer brisket, Colby Jack cheese, provolone cheese, fried crispy onions, caramelized onions, and barbecue sauce between two slices of sourdough bread.
05 -
Heat a cast iron skillet over medium heat. Toast sandwiches until bread is golden brown and cheese is fully melted, about 3 to 4 minutes per side.