Omani lamb qubooli

Name: Omani lamb qubooli
Ingredients: 50g/1¾oz whole black peppercorns; 35g/1¼oz cardamom pods; 20g/¾oz whole nutmeg; 50g/1¾oz cinnamon sticks; 25g/1oz cloves; 75g/2½oz cumin seeds; 50g/1¾oz coriander seeds; 1 tsp saffron; 1 tbsp caster sugar; 200g/7oz raisins or dried barberries; 4 tbsp vegetable oil, for frying; 1 onion, thinly sliced; 2 tbsp garlic paste; 1 tbsp ginger paste; 1 tbsp coriander seeds; 1 tbsp freshly ground black pepper; 1 tbsp ground cumin; 1 tbsp dried chilies; 1 tbsp baharat spice blend (see above or use shop bought); 1 tbsp cardamom pods; 1 tbsp cloves; 6 bay leaves; 2 dried limes, pierced; 2 cinnamon sticks; 4 lamb shanks (300g/10½oz each); pinch salt; 2 tbsp vegetable oil, for frying; 2 onion, sliced; 660g/1lb 7oz rice; 400g tin chickpeas, drained and rinsed