Rinse and pat dry the brisket.
Trim the fat cap, leaving about 1/4-inch of fat. Trim away any other excess fat on the brisket. Remove the silver skin from the underside of the meat.
Preheat your electric smoker to 225°F (107°C)
While your smoker heats up, apply the trimmed brisket with BBQ rub. Apply liberally and rub across all sides of the meat.
Transfer brisket to smoker. Apply meat probe to meat. Aim for thickest part of the brisket.
Smoke at 225°F until the internal temperature of the brisket reaches 160°F. Usually 6-8 hours.
Carefully remove brisket from smoker and wrap in foil tightly. Transfer back to smoker.
Allow the brisket to smoke until internal temperature reaches 190°F (88°C), usually a further 2 hours.
Remove the brisket from the smoker and transfer to cutting board. Leave foil on and allow to rest for 20-30 minutes.
Slice brisket against the grain into slices 1/4-inch thick. Serve up and enjoy.