Crock-Pot Apple Butter - cooking recipe

Ingredients

12 c. thick apple pulp
6 c. sugar
3/4 c. vinegar
3 tsp. ground cinnamon

Preparation

Cook apples and put through a colander to make apple pulp. Place 10 cups of pulp in crock-pot with remaining ingredients. Turn on high and cover.
Stir occasionally.
As butter cooks down, add remaining pulp.
(If pot is large enough, put in all the pulp at the start.)
Turn temperature to low and allow to cook overnight.