Gently toast the cumin, chilli flakes, peppercorns, fennel seeds and thyme in a pan over a low heat until aromatic. Grind to a fine dust with the demerara sugar using a spice blender or pestle and mortar. Tip into a bowl and mix in the remaining rub ingredients.

Season the brisket generously with the rub and leave to stand at room temperature for up to an hour. Prepare the smoker for indirect cooking at 120-130C. Once ready, place the seasoned brisket on the smoker, fat-side up. Leave for 10 hrs or until the outside is a dark, mahogany colour. Top up the smoker as needed.

Remove the brisket and wrap in butcher paper. Return to the smoker and continue to cook for 2-3 hrs until the meat reaches 93-94C when probed with a thermometer. Allow to rest for 40 mins before slicing and serving with charred greens and salsa rossa.