In a large pot, combine water, kosher salt, sugar, and pink curing salt. Stir until the salts and sugar are dissolved.
Add black peppercorns, coriander seeds, garlic, mustard seeds, paprika, thyme, and allspice. Stir to combine.
Allow the brine to cool to room temperature.
Place the beef brisket in a large resealable plastic bag or container.
Pour the cooled brine over the brisket, ensuring it is fully submerged. Seal the bag or cover the container.
Refrigerate for 5-7 days, turning the brisket daily to ensure even curing.
In a small bowl, mix together black pepper, ground coriander, garlic powder, paprika, brown sugar, and mustard powder.
After the brisket has cured, remove it from the brine and rinse it under cold water. Pat it dry with paper towels.
Rub the spice mixture evenly over the entire surface of the brisket.
Preheat your smoker to 225°F (107°C).
Place the brisket in the smoker and smoke for about 6-8 hours, or until the internal temperature reaches 190°F (88°C).
If you don’t have a smoker, you can use an oven: Preheat to 225°F (107°C) and bake the brisket on a rack in a roasting pan for the same amount of time.
Once smoked, let the brisket cool to room temperature.
Wrap it tightly in plastic wrap and refrigerate for at least 24 hours before slicing.
Slice the Montreal smoked meat thinly against the grain.
Enjoy your meal!