Melt 2T butter in a saute pan and add onion and garlic and cook 5 minutes. Add 2T butter and carrots, celery and asparagus and cook for 2 minutes. Add flour and stir to coat veggies cooking for 2 minutes more. Add the broth and thyme and 1 tsp each S&P and bring to a simmer. Cook 10 minutes to thicken. Now add the chicken, peas and parsley. Simmer for 5 minutes.