Prepare apples by soaking them in water and white vinegar for 10 minutes.
Core and cube apples, leaving peeling on.
Add everything into instant pot and stir.
Pressure cook 15 minute and set valve to sealing.
Let instant pot natural release for 20 minutes.
Then carefully release leftover steam.
Remove the lid and use an immersion blender to puree the mixture until it is smooth and uniform.
Next set the instant pot to sauté and stir until it starts to boil and pop. set the lid on it partially so it does not make a mess, but that it can also let some steam out.
After 5 to 10 minutes stir and check the thickness of the apple butter. The longer it cooks the thicker it will get. Once you reached you desired thickness it's ready to be canned.