Lamb Arayes with Pickled Onions and Harissa

Ingredients

• 10 pita breads, halved
• 60 ml (2 fl oz/ ¼ cup) olive oil for the pan
• 1 red onion, finely sliced
• ½ tablespoon sumac
• 60 ml (2 fl oz/1/4 cup) apple-cider vinegar
• 3 tablespoons caster (superfine) sugar
• 1 kg (2 lb 3 oz) minced (ground) lamb
• 3 garlic cloves, crushed
• ¼ cup each chopped mint, parsley and coriander (cilantro) leaves
• 3 tablespoons olive oil
• 2 teaspoons each sumac, ground coriander and ground cumin
• 1 tablespoon brown sugar
• 1 large egg
• Sea salt flakes and freshly ground black pepper, to season
• Yoghurt
• Chopped parsley
• Harissa paste (optional)