Sweet spiced lamb shanks with quince - Good Food Middle East

Ingredients

• 1 tbsp olive oil
• 4 lamb shanks
• large knob of butter
• 2 large onions, halved then cut into wedges
• 4 garlic cloves, crushed
• 4 strips zest from 1 unwaxed lemon, plus the juice
• 2 tsp ground cinnamon
• 2 tsp ground coriander
• 1 tsp ground ginger
• 1 tsp ground cumin
• good pinch of saffron strands (optional)
• 1 heaped tbsp tomato purée
• 1 tbsp clear honey
• 400ml good lamb or beef stock
• 2 quinces, peeled, quartered and cored