Heat soup pot over medium heat, then add butter, carrot, parsnip, celery, garlic and onion. Add a generous pinch of salt. Stir often and do not brown, you just want to sweat the vegetables.
Add chicken stock plus water as needed.
Bring to a boil, reduce to a simmer, and cook until carrots are soft.
Add chicken, egg noodles, barley and lemon juice, hot sauce, and spices. Cook until noodles/barley are tender. Tasting and adjusting spices along the way.