Rub the rub all over the brisket.
Transfer to a resealable container or wrap in foil and refrigerate overnight.
Fire up your smoker for cooking at 225 F. Use whatever wood you prefer. I wanted a little stronger smoke flavor than I usually opt for so I used Jack Daniel's whiskey barrel chunks. Burnt ends need a little more smoke than say sliced brisket, in my opinion.
Transfer the brisket to the smoker and cook until the internal temperature (as measured in several spots) reaches 170 F.
Remove the brisket and place it onto a large piece of foil.
Combine the crutch sauce ingredients and pour over the brisket.
Seal the brisket tightly in the foil and return to the smoker until the temperature reaches 195 F.
Remove the brisket from the foil.
Cut beef into 3/4" - 1" cubes and place into a large disposable pan.
Lightly (very lightly!) drizzle the meat with the BBQ sauce. You just want the flavor from the sauce. Toss gently to coat.
Sprinkle with more of the rub and return to the smoker for 1 more hour.