Recipe developed by Sara Lee Refrigerated Foods
Soak beans 12 hours overnight in refrigerator in enough cold water to cover completely. Drain thoroughly before using.
Bring stock, soaked beans, and all other ingredients to a boil. Reduce heat, cover, and simmer 3 hours, until beans are soft and soup is thickened.
Add turkey and sherry and simmer 10 minutes, uncovered.
Serve 8-fluid-ounce portions topped with a dollop of sour cream and chopped green onions, if desired.