Slow Cooker Apple Butter

Ingredients:

2  3 lb (50 oz) jars unsweetened apple sauce
3 lbs granny smith apples
4 cups sugar
1 1/2 cups apple juice
2 tsp cinnamon
1 tsp cloves
1 tsp allspice

Directions: 

1. Peel and cut apples into small chips. Place all ingredients in the slow cooker and stir.
2. Cover and cook on low overnight (eight to ten hours). Remove cover, stir and taste. Add more spices or sugar if desired.
3. Continue cooking for a few more hours, uncovered, until some of the liquid has gone and butter has cooked down a bit.
4. Pour into jars and refrigerate (unless it is canned properly).