Add water or chicken broth first
Top it with every other ingredient except chicken- Add Onion, Crushed Tomatoes,Garlic,Chipotle chilli,Adobo Sauce,Cumin,Oregano and Salt.Give it a mix.
Add the Chicken Breast on top and close the lid.
Select PRESSURE COOK for 15 minutes on HIGH with the Pressure Valve Closed(at SEALED position).
After the cooking time is over, let the pressure release naturally for 10 minutes.Quick Release after that.
Remove the Chicken,Shred it with two forks.Put it back in the instant pot.Give it a mix.
Garnish with Cilantro and serve inside tortilla or on top of rice.
If you want to reduce the sauce,Switch to SAUTE and cook for 10-12 minutes.