Separate the brisket flat from the point and remove the fat from the top. On the fattier side, trim the fat, until it is only about 1/4-inch thick. (see video above)
Rub the flat and point with Brisket Rub. Cover and refrigerate overnight. Combine the mop ingredients.
Heat smoker to 325F degrees.
Add the brisket to the smoker, fat side down. Smoke for 45 minutes. Flip the point. Smoke for 45 more minutes. Flip the flat. Smoke for 1 1/2 hours.
Place the meat in two aluminum half pans, fat side down. Pour the mop into the pans; cover with foil.
Return to the smoker for about 2 hours or until the temperature probe glides in like butter The internal temp will be about 210F.
Let rest 1 hour before slicing.
Notes
BBQ TIP: If you live in a drier climate, add a pan of water to your smoker to help create more moisture.