Chicken Dopiaza

Name: Chicken Dopiaza
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: Asian, Indian
Ingredients: 400 g brown or yellow onions; 40 ml rapeseed oil or 40g ghee (divided); 400 ml Curry House Base Sauce (heated to a gentle simmer); 3 green cardamom pods (lightly bruised); 1 teaspoon cumin seeds; 1 teaspoon coriander seeds (coarsely crushed); 25 g Garlic and Ginger Paste; 2 teaspoons Mixed Powder; ½ teaspoon ground cumin; ½ teaspoon Kashmiri chilli powder (or to taste); 30 g double concentrated tomato purée; 75 ml hot water (divided); 600 g Curry House Pre-Cooked Chicken (cut into bite sized pieces); ½ teaspoon fine salt (plus more only if needed); 1 teaspoon kasoori methi; ½ teaspoon Garam Masala; 15 g fresh coriander (finely chopped and divided)