1 - step 1 To make the spice mix, combine all of the ingredients together with a large pinch of salt.

2 - Slash the lamb shoulder all over with a sharp knife and rub in.

3 - If you have the time, marinate for up to 24 hrs, but this is not essential.

4 - step 2 Heat the oven to 150C/130C fan/gas 2.

5 - Heat the oil in a large flameproof casserole dish or roasting tin over a medium-high heat, add the onions, carrots and garlic and sizzle for 5 mins until the onions and carrots are softened.