Your first step in making apple butter is you have to start with applesauce. You can use store-bought but there's nothing like homemade.
Add the applesauce to the crockpot. Stir in all of the spices and sugar.
Turn the crockpot setting to low. Set the timer for 8 hours. Making this while you're sleeping is perfect. You will wake up in the morning with your kitchen smelling like cinammon apples.
If the apple butter isn't thick in 8 hours, then try cooking it for another hour and just keep cooking it until it's all nice and thick.
Once your apple butter is finsihed, you can jar it up and set it in the fridge. It should last for 4-6 weeks.
If you are wanting to can it, follow the safety steps to canning apple butter according to the National Home and Canning Preservation.