Crock Pot Apple Butter

1- 48 - 50 oz jar unsweetened apple sauce or cinnamon apple sauce  storebought or homemade

3 lbs granny smith apples (peeled and diced into chips)

4 cups sugar

1 cup apple juice or cider

2 tsp cinnamon

1 tsp cloves

1 tsp allspice

Peel and cut apples into small chips. Place all ingredients in the crock pot and stir. Cover and cook on low overnight (eight to ten hours). In the morning remove cover, stir and taste. Add more spices or sugar if desired. Remove the lid and change the temperature to high continue cooking for about 4 more hours, uncovered, until some of the liquid is gone and the apple butter has cooked down a bit. Rule of thumb a wooden spoon should be able to stand upright when you place it in the apple butter. Pour into jars and refrigerate or process in a hot water bath.   Process half pints for 5 minutes and pints for 10 minutes. The time starts once the water comes to a boil.  Serve over hot biscuits, toast, scones, etc.