In a large saucepan, saute the celery, onion and garlic in butter until tender. Stir in flour until blended. Gradually add the broth. Bring to a boil; cook and stir for 2 minutes or until thickened. Reduce heat; stir in the squash, parsley, salt, savory, rosemary and nutmeg and pepper. Simmer, uncovered, for 10 minutes or until heated through. Cool slightly.
In a blender, process soup in batches until smooth. Return to the pan and heat through. Gradually stir in cream. Cook 5 minutes longer, stirring occasionally.Yield: 6 servings