This classic beef and barley soup is slow-cooked for tenderness and deep flavor. Enjoy it with crusty bread or a side salad. Refrigerate leftovers within 2 hours and eat within 3 to 4 days; the barley soaks up broth, so add water or broth when reheating to 165°F.
Keyword beef barley soup, comfort food, hearty soup, slow cooker soup