You can make amazing
apple butter by precooking the apples in the instant pot. Once they are mashably soft, keep cooking on the stovetop with the spices till it tastes right. No sugar needed. I never had trouble with the apples expanding, maybe because the instant pot doesn’t release steam during cooking like a regular pressure cooker does.
I also do scrap stock - carrot ends,
apple cores, onion ends, pepper cores, and herb stems go in the freezer. When I have
enough, it goes in for 30 min. Much more flavorful than the stovetop.