Crockpot Refried Beans

Complements: www.realmomkitchen.blogspot.com

3 cups dry pinto beans (I used 1/2 pinto beans and 1/2 black beans)
1 onion, diced
9 cups of water
1 3/4 teaspoons pepper
2 tablespoons garlic, minced
1/4 teaspoon cumin
salt to taste

Put all the ingredients in a crockpot and cook on high for about 8 hours. After they are done, drain all of the liquid out and save the liquid. Mash beans with a potato masher (I used a blender). Add liquid, a bit at a time, to desired consistency. Add salt to taste. I also added a few tablespoons of sour cream. Enjoy!