What you need to get started:

Apples, about 6
Water, about 1/4 cup
Cinnamon to your likening
Sugar
Crock-pot

Let's get started:

Peel the apples and slice them thin.
Put them into the crock-pot.
Add the water.
Cover and cook all day.
When apples are done add the sugar and cinnamon.
Cool or serve warm.