Fragrant spiced chicken with banana sambal

Name: Fragrant spiced chicken with banana sambal
Ingredients: 2 large onions, quartered; 4 garlic cloves; thumb-sized piece ginger, peeled and roughly chopped; 600ml reduced-salt chicken stock; 1 tsp ground coriander; 1 tsp ground cumin; ½ tsp ground turmeric; 4 green cardamom pods; 1 large red chilli, deseeded and finely chopped; 2 tbsp ground almond; 2 tbsp tomato purée; 500g skinless chicken breast, cubed; small pack coriander, chopped; 1 small red onion, finely chopped; ¼ cucumber, peeled, deseeded and diced; 1 small banana, diced; zest and juice ½ lime; 250g pack ready-cooked brown basmati rice