- Add all the marinade ingredients to a large bowl and mix thoroughly with the chicken. Cover and leave to marinate for at least 1 hour (overnight would work even better). 
- When you are ready to begin, rinse the rice in a sieve until water comes out nearly clear (around 2 minutes). Set aside. 
- Set the instant pot to saute and add the coconut oil. Once melted add the onion and fry until softened (around 5 minutes). Add the garlic and fry for a further 1 minute. 
- Add all of the spices and fry for 1 more minute (the smell should be amazing!). 
- Add the marinated chicken and all of the marinade to the instant pot and saute for around 3 minutes. 
- Add all the remaining ingredients except the coriander. Stir well to combine.  
- If doing pot in pot rice, add a tall trivet to the instant pot and add the rice to a suitable container with 650ml of boiling water. Put the rice on the trivet. 
-  Put the lid on the instant pot. Set on high pressure for 7 minutes. 
- Leave under pressure for 9 more minutes. Release any remaining pressure and when the pin drops, remove the lid. 
- Remove the rice and the trivet and stir the tikka masala together. 
- Serve over rice or naan bread garnished with the coriander (cilantro).