2 tbsp basil leaves
2 tbsp coriander leaves
10 garlic cloves, peeled
1 lemon, juice only
1 mango, peeled and sliced
2 tbsp mint leaves
2 tbsp parsley leaves
2 large potatoes, peeled and cut into chunks
2 large white sweet potatoes, peeled and cut into chunks
130²µ/4½´Ç³ú tamarind concentrate
100ml/3½fl oz pomegranate molasses
1 tbsp coarse ground black pepper
400g/14oz dark brown sugar
1 tbsp ground cardamom
20g/¾oz smoked chipotle chilli paste
1 tbsp ground cinnamon
½ tbsp ground cloves
1 tbsp ground cumin
2 tbsp olive oil
good splash rapeseed oil
2 tbsp rapeseed oil
1 tbsp ground turmeric
1.8kg/4lb boneless butterflied leg of lamb
200ml/7fl oz high-quality beef or lamb stock