Sorrel is a hardy spring herb. It has a unique sour taste that is refreshing in a soup.
Melt the butter in a soup pot on medium heat. Add the onions and gently sauteu0301 or 5 minutes. Add the rest of the soup ingredients and simmer for 30 minutes or until the potatoes are tender. Puree in a food processor.
Warm six soup bowls. Pour soup into each bowl. Place a dollop of creu0300me fraiu0302che and a sprinkling of sorrel julienne on top of the creu0300me fraiu0302che in each bowl. Serve at once.