Cut the spare ribs into individual ribs, and then cut into chunks about 7.5 cm long.

Mix all the marinade ingredients together in a bowl and steep the spareribs in marinade for about 25b minutes at room temperature. Using slotted spoon, remove the spareribs from the marinade.

Put the orange zest together with the rest of sauce ingredients into a clean wok or medium size pot. Bring the sauce to the boil, then turn the heat down.