Homemade harissa

Method

1. Cook the chillies on the barbecue for 10 minutes, turning, until the skins blacken and the flesh is tender. Transfer to a plastic food bag to steam and cool.
2. Remove the stalk and peel the chillies (rubber gloves might be wise). Split lengthways, scrape out the seeds with a knife and discard. Don’t rinse the chillies – you’ll lose the smoky flavour. Set aside.
3. Toast the coriander, cumin and caraway seeds over the heat in a dry frying pan until fragrant, making sure they don’t burn, then work to a fine powder in a pestle and mortar or spice grinder. Add the chillies, garlic and salt, then grind to a fine paste. Stir in the remaining ingredients, then set aside for at least 1 hour before using (see tip).