This is perfectly delicious as comfort food, but equally if you chuck it in a tagine to serve, it is a very pretty dinner party main. It was modified from a great Nigel Slater recipe and has evolved over time.
If you don't have Ras el hanout spice, replace with cinnamon (and halve the amount)...hard to describe as Ras El Hanout is a blend of about 23 spices. I do know you can order the Herbie's mix online though! I do!