This is one of many mediaeval dishes named after (or created by) the gastronome caliph Ibrahim al-Mahdi (779-839). What is unusual is that this one comes from Andalusia. It is chicken (though you can also use lamb, if you wish) in a sauce of rose syrup with olive oil, vinegar, sugar, pepper, saffron, coriander, salt, and a little bit of onion. Peeled and broken up almonds, pistachios, spikenard and cloves are sprinkled on before ‘crusting’ the dish with a mixture of flour, rose water, camphor, and eggs. The result is a wonderfully tangy symphony of sweet-and-sour flavours.