Pat dry the whole brisket.
Trim off the large piece of fat from the top side. Leave the fat cap on the bottom untrimmed. Trim of 1/3 of the fatty triangle point end if you are looking to have just a brisket flat. Save for later use. If not, leave whole and disregard steps 1 + 2.
Place the brisket in a bin that is large enough to hold it. My brisket was 9lbs untrimmed; 6lbs after I trimmed it.
Mix together the brining ingredients and pour over the brisket, making sure that it’s completely submerged. Use a plate to weigh it down if it isn’t. Brine for 2 hours per lb.
Take the brisket out of the brine and let dry on a rack overnight.
Mix together the dry rub and rub the topside of the brisket.
Preheat your smoker to 250 degrees. Why is the picture of the brisket dark, you ask? Because smoking a brisket is a long labor intensive process. You will want to start it in the early morning. Like 6AM or earlier depending on the size of the brisket.
The brisket will take up to 90 minutes per lb. You will want to reach an internal temp of 200 - 205 degrees. Use a digital probe thermometer to monitor the temp through the cooking process. My 6lb brisket took 8 hours to smoke.
Take the brisket out of the smoker when the internal temp is reached. Let rest for at least 30 minutes before slicing.