Using a sharp knife, trim fat off of beef to about 1/4 inch.
Then carefully remove the silver skin of of meat.
Rub with mustard and seasonings of choice.
Inject brisket with beef broth or liquid steak seasoning.
Cover and let refrigerate for at least 12-24 hours until ready to begin smoking process.
Start your smoker and get the temperature up to 185 degrees F.
Place beef brisket in smoker and if using probes, insert them now.
Close the lid and let the smoking process begin.
We let it smoke at this temperature until the next morning (about 8 hours).
n raise the temperature of the smoker to 225 degrees until the internal temperature of the brisket reaches 165 degrees.
Then remove from smoker and (add Beef Tallow if desired) then wrap in butcher paper or foil.
Place back in smoker and let cook until internal temperature reaches 203 degrees.
Once the meat is to desired temperature, remove and wrap in a clean towel and place in a cooler. (leaving butcher paper on)
Let rest at least an hour or until ready to serve.
Slice against the grain and serve.