Combine the rub ingredients in a bowl making sure to work out any clumps that might form.
Use immediately or store rub in an airtight container in the cupboard for 3 months. Check on it every so often to make sure that the brown sugar has not hardened or dried out. Give it a good stir and secure the lid.
To use: Apply a liberal amount all over the brisket. Cook as directed. Discard any rub that has come into contact with raw meat or moisture.