The next day, keep the beef on your sheet tray and open the package. (We call this the poor man’s sous-vide at Mission Chinese Food.) You’ve successfully slow-cooked brisket in its own juices.
Put all the marinade ingredients in a bowl and mix well until the sugar is dissolved. Add the brisket and coat in the marinade, cover and leave for at least 2 hours, or overnight in the fridge.
Reduce the oven temperature to 180C/160C Fan/Gas 4. For the beef brisket, mix together honey and mustard in a small bowl. Rub the brisket all over with the all-purpose seasoning. Melt the beef fat ...