Instructions

  1. Melt butter in a large saucepan over medium heat; add squash and onion.
  2. Cover and cook 13 minutes or until squash and onion are very tender.
  3. Transfer squash mixture to a food processor bowl; puree until smooth.
  4. Return squash mixture to saucepan.
  5. Stir in broth and next 4 ingredients; cook, uncovered, over low heat until horoughly heated.
  6. To serve, ladle 1 cup soup into each of 4 individual serving bowls.
  7. Top soup with Parmesan cheese.