Black Bean and Sweet Potato Soup (crockpot)

1 onion (saute in a little avocado oil)
3 cloves garlic, minced (saute for full flavor)
3 cups sweet potatoes (diced pretty small)
3 cups cooked black beans (I love using dry beans and cooking ahead
1 T. cumin
1 t. salt or to taste
pepper
3-4 c. chicken broth

1.  Saute the onion and then add garlic, using medium heat.  Add all ingredients to a crock pot and cook for about 3 hours on high or 5 hours on low.  When it is done either use an immersion blender or a food processor and process half to two-thirds of the soup.  Mix together and serve.  Add garnishes, such as chips, onions, avocado, etc.