Place in crockpot add 2 cups liquid (chicken broth, or water, and/or Lakewood Organic Apple Juice). Add sauted sweet onion and garlic. Cook 8 hours on low. Puree with hand blender or process in food processor a batch at a time. Add more apple juice as needed. Salt and pepper to taste.
Liquid ideas: I had left over chicken broth from a chicken I had roasted a couple days before. I also freeze vegetable water in ice cube trays, which I could have used for the liquid. I save a lot of my broths in ice cube trays. I have a few gallon size bags in my freeze with broth cubes in them.