Okra, Spinach and Sweet Potato Tagine with Chermoula Couscous Fritters

• 2 tablespoons olive oil
• 1 red onion, chopped
• 2 garlic cloves, crushed

A tagine is a type of Moroccan stew, made with meat, fish or vegetables and named after the earthenware pot it is cooked in. This vegetarian version is spiced with harissa, a hot condiment that adds real zest to dishes.

Heat the oil in a large pan, add the onion, garlic, ground coriander, cumin and sweet potatoes and cook for 5 minutes over a moderate heat until just beginning to brown.