Saute onion and celery in butter. Add flour. Mix. Add broth, potatoes, carrots, sherry, parsley flakes, chicken ... OR if doing broccoli or spinach (fresh or frozen), add after ... soda just before serving.
3 or more sliced or ... onion, sliced mushrooms, broccoli & cauliflower buds, sliced or julienne carrot & celery, spinach, snow peas or thawed ... with cheese and serve.