Heat the smoker to 275°F.
Rub the bison chuck roast liberally on all sides with the Headwaters BBQ Baldy Mountain Beef Rub.
Add hickory wood chunks to the smoke and get that delicious smoke rolling.
Place the seasoned roast on the smoker and shut the lid.
Smoke the bison roast until the internal temperature reaches 165°F (roughly 3 to 4 hours). A heavy, dark bark will form on the exterior of your roast at this point.
Wrap in either butcher paper or foil and return to the grill until the internal temperature hits 195°F.
Remove the smoked bison roast and allow it to rest for 20 minutes.
Cut into 1-inch cubes and transfer to a foil baking pan. Sprinkle with 1/4 cup brown sugar and drizzle with Hot Dr. Pepper BBQ Sauce (see below). Toss gently to coat all of the pieces in a little of the sauce.
Place the pan on the still-hot smoker, and cook for an additional 1 to 1½ hours.
Serve immediately and get your face ready for some flavor!