Use a sharp knife for chopping the onion and garlic to make the process easier.To make the soup creamier, you can add a tablespoon of flour to the butter and onion mixture before adding the broth.Use an immersion blender to puree the soup directly in the pot, which saves time and reduces cleanup.Shred the cheese while the soup is cooking to save time.Garnish the soup with fresh parsley or chives to add flavor and color.