Start by heating up a pan with the oil, use a medium high heat. Add the spices to a small pot / cup so you can cook them all evenly. Place the spices to one side for now.
Slice then Sauté the onions for around 6 minutes.
Add the garlic and ginger, cook for a couple of minutes being mindful not to burn the garlic
Add all of the spices in, and stir for a minute or two, the spices should become very aromatic when they are ready. Be careful not to burn the spices.
Add the tomato puree and passata and stir thoroughly, making sure all the spices are mixed into the sauce. Leave to cook for 2-3 minutes.
Add the 125ml of water, and 130ml double cream and stir in.
Once mixed add the chicken and cook for a further 10-15 minutes while you cook the rice.