Curried Butternut Squash Soup

2 tablespoons olive oil
2 cups chopped onions
1/2 4-ounce can chopped green chiles
2 teaspoons curry powder
1 teaspoon coriander
1/2 teaspoon nutmeg
1/2 teaspoon cumin
1 teaspoon salt
6 cups cubed peeled butternut squash (about 4 pounds)
1 can chicken broth
2 cups water
1 cup skim milk
2 tablespoons dry sherry
Heat olive oil in a Dutch oven over medium heat.  Add onion; cover and cook onion 5 minutes.  Stir in the next 9 ingredients through water and bring to a boil over medium-high heat.  Cover, reduce heat, and simmer 30 minutes or until squash is tender. 

Place half of the squash mixture in a blender; process until smooth.  Pour the puréed squash mixture into a bowl.  Repeat procedure with the remaining squash mixture.  Return the puréed squash mixture to pan, and stir in the milk and sherry; cook 5 minutes or until soup is thoroughly heated. 

Yield:  8 servings (serving size: 1 cup).