Blanch duck
tongues in boiling water for a minute. Drain and set aside. Boil spicy
marinade ingredients (except tea leaves) for 20 minutes. Add tea leaves
and simmer for another 5 minutes. Strain the liquid. Re-boil the
marinade. Put duck tongues in and simmer for 5 minutes. Leave to soak
for 1 hour. Serve cold. Use any type of tea leaves you like in this
recipe as we prefer. Duck tongues are cooked quite quickly and need
short cooking time.