In a large pot add the chicken broth and barley. Bring to a boil, reduce heat, cover and simmer for 15 minutes.
In the meantime, in a nonstick pan add the olive oil, garlic, carrots, celery, onions, and sauté until soft (~ 5 minutes).
Add the sautéed vegetables to the broth. Cook uncovered for 30 minutes.
Add the chicken, butternut squash, thyme, sage and fresh ground pepper. Continue to cook uncovered for 30 minutes. Stir a few times with a rubber spatula so the squash doesn’t get mushy.
This soup freezes great.