I am working with a group that picks up food from grocery stores when they can no longer sell it. We got a load of apples a few days ago. We passed out as many of them as we could but we still had some left over. I brought them home and I have been making batches of apple sauce to give to the community. The apples were in very good shape, the stores just have rigid policies about expiration dates. These came from Whole Foods.
It's really easy if you use a slow cooker. My cooker holds about 18 apples. I peeled them and cubed them and put them in the cooker. Add 1 cup of apple cider and about 3/4 cup of sugar. The amount of sugar depends on the sweetness of your apples. Add 1 tsp. of cinnamon and 2 tablespoons of lemon juice.
Set the cooker on low and cook for about 8 hours.
I had already filled 2 quarts before I remembered to take this photo. Mash the apples with a potato masher and taste the sauce. If it needs more sugar, add some and stir it to dissolve.
One cooker of apples made 3-1/2 quarts of good homemade apple sauce. I love being able to make something good out of something that would have been thrown away.