Heat oil in a large soup pan or Dutch oven over medium heat. Sauté the onions, celery, and carrots, seasoned with salt and pepper, stirring frequently until onions are softened and translucent, about 4 minutes.
1 tablespoon olive oil, 1 cup diced onion, 1 cup chopped celery, 1 cup chopped carrots, ½ teaspoon kosher salt, ¼ teaspoon coarsely ground black pepper
Add garlic and continue cooking, stirring, for 1 minute.
2 cloves garlic, minced
Add chicken, broth, parsley, thyme, bay leaf, and barley; stir to combine.
1 ½ to 2 pounds boneless skinless chicken thighs, 4 cups reduced sodium chicken broth, 1 cup water, or additional broth, 1 tablespoon dried parsley, ½ teaspoon dried thyme, 1 bay leaf, ¾ cup pearl barley
Bring to a boil, stir and reduce to a simmer. Cover and cook the soup for 45 minutes, stirring occasionally, until barley is tender and chicken is cooked through.
Remove bay leaf, discard. Remove chicken from pan, place on a plate, and shred or chop when cool enough to handle.
Return the chicken to the soup; taste and season with salt and pepper, if desired.
Video
Notes
Recipe revised 1/2024. Previously published as Chicken Barley Soup with Butternut Squash and Kale. If desired, recipe can be modified to include 4 cups chopped butternut squash and 6 cups roughly chopped kale. Add more broth as needed.
Vegetarian: Omit chicken and use vegetable broth. If desired, add 1 can drained and rinsed white beans.
Storage: Leftover chicken barley soup can be stored in an airtight container for 3 to 5 days. To freezer, transfer the soup to an airtight container or freezer bag. (I like using freezer bags because I can press out the excess air and freeze them flat to save space.) Chicken barley soup will keep up to 3 months in the freezer; thaw it in the fridge before reheating.