Chicken chilli con carne

Name: Chicken chilli con carne
Ingredients: 2 tbsp olive oil; 1 onion sliced; 2 mixed peppers sliced (use red, yellow or orange peppers); 2 large garlic cloves crushed; 1 small bunch of coriander stalks finely chopped and leaves roughly chopped; ½ tbsp ground coriander; 1 tbsp ground cumin; 1-2 tsp chipotle paste; 400g can chopped tomatoes; 1 tbsp tomato purée; 300ml chicken stock; 1 small cinnamon stick; 4 skinless chicken thighs bone-in; 400g can black beans; 400g can kidney beans drained; 1 tbsp red wine vinegar; 20g dark chocolate (at least 70% cocoa solids); cooked rice or tortilla chips; guacamole and soured cream (optional)