Wash 10 apples, or enough to fill your crock pot, and place them in your crock pot, whole. Stems, seeds, peelings, and all.
Cook on low for 3 to 4 hours. Stir occasionally.
Apples are done when you can pierce them with a fork.
Remove the apples from the crock pot and run them through the food mill. Empty the peelings and seeds as necessary.
After apples are pressed through the food mill, add 1 cup of sugar (more, or less, depending on how sweet you like your apple sauce) to the warm apple sauce and stir.
Add cinnamon to taste.
Serve immediately or refridgerate.