Peel (if peeling) and chop apples
If using fresh mango - peel and chop
Add apples, mango, cinnamon, and water to Instant Pot inner pot
Put lid on Instant Pot and make sure valve is set to sealing
Set manual or regular pressure for 12 minutes
It will take several minutes for the Instant Pot to come to pressure before the 12 minutes of pressure cooking starts
Once the 12 minutes of cooking is done, allow the Instant Pot to depressurize naturally for 10 minutes before doing the quick release to release the rest of the pressure
Puree sauce with hand blender or regular blender until desired consistancy
Store in refrigerator for up to a week
It is optional to peel the apples. The apple skin will get very soft in the Instant Pot and will puree with the rest of the sauce. However, it may still be detectable, especially if you like chunkier sauce.