Cream of Mushroon Soup

Grrrrrgh!
Course : Soups
From: HungryMonster.com
Serves: 6
 

Ingredients:

12 ounces sliced mushrooms -- drained
1 tablespoon margarine
3 cups chicken broth
2 tablespoons onion -- chopped
1 teaspoon salt and pepper -- to taste
2 tablespoons all-purpose flour
1 cup sour cream
1 cup half and half cream or milk
 

Preparation:

In skillet, saute sliced mushrooms in butter; place in crock pot. Add chicken broth, onion, salt, and pepper; stir well. Cover and cook on low setting for 6 to 10 hours (on high setting for 2 1/2 to 3 hours). About 30 minutes before serving, turn to high setting. Mix flour and sour cream; add to crock pot with half and half cream. Cook until slightly thickened.