Prepare the brisket by rinsing and cutting off all the silver skin and excess fat
Mix the mustard and the hot sauce together and slather it on both sides of the brisket
Sprinkle on the BBQ spice in a thin layer
Preheat the smoker to 200 - 250 degrees
Place the meat on the grill and allow to cook for about 4 - 5 hours
When the brisket has formed a crust or a bark, remove and wrap tightly
Place in a warm oven at 100 degrees or an insulated bag for 8 - 10 hrs
If placing in an oven, turn the oven off in 2 hrs
Slice and serve