large handful chopped fresh coriander
4 large onions, halved and sliced into very thin rounds
175g/6oz white basmati rice
175g/6oz small brown lentils
1 tsp ground allspice
1 tsp freshly ground black pepper
1 tsp ground cinnamon
salt, to taste
300ml/10陆 fl oz sunflower oil
75g/3oz butter