Simple lamb rogan josh

Ingredients

• 6 garlic cloves, roughly chopped

• 1 large onion, roughly chopped

• thumb-size piece fresh ginger, peeled and roughly chopped

• 1 tsp ground cinnamon

• 2 tsp ground cumin

• 2 tsp ground coriander

• 1 tbsp paprika

• 1 tsp chilli powder

• 1 tsp salt

• 1 tbsp tomato purée

• 4 tbsp vegetable oil or ghee (clarified butter)

• 1kg/2¼lb casserole lamb, cut into bite-size cubes

• 8-10 cardamom pods, lightly crushed with the back of a spoon

• 300ml/10fl oz lager