This is one of the few dishes in the medieval Arabic culinary recipes requiring duck, which in this case is referred to as iwazz al-qirt (أوزّ القرط), a peculiarly Andalusian Arabic term that translates literally as ‘earring goose’ and denotes a kind of duck that remains to be identified. The other interesting feature of this recipe is that it is attributed to one Abu Salih al-Rahbani, who ‘made it in his Kitchen.’
In this 13th-century recipe, the duck is marinated overnight in a mixture of juices (onion, garlic, coriander), murrī, vinegar, olive oil, and a collection of aromatic spices, including cassia, ginger, and cumin. Before putting the duck into the marinade, its skin should be pierced, with the holes being variously stuffed with garlic, almond paste, walnuts, or ginger.
If you happen to have a tannūr (clay oven) handy, put the duck inside — otherwise, just use the oven at home — and when it is cooked to a turn take it out, cut it up and serve with its juices. To say that the result is succulent is not to do it justice. If you do need to describe it, ‘heavenly’ is the word I’d use…
And, in case you feel guilty about such indulgence, bear in mind that it is also for medicinal purposes since, so the author reminds us, it is highly nutritious and strengthening!