We tried this recipe the other day. AMAZING!!! I can't even describe how great this was. We didn't use the sour cream-neither of us is very fond of it. I did make a minor alteration with the onion, because the onion didn't seem to be cooked enough when the mushroom was. So, the recipe below should work much better! :)
Elegant Mushroom Soup
1 large onion, chopped
1/2 Pound fresh mushrooms, sliced
2 Tablespoon Butter
2 Tablespoon all-Purpose flour
1/4 Teaspoon Pepper
1/8 Teaspoon Salt
1 Cup Milk
1 Cup chicken broth
1 Teaspoon Parsley
sour cream, optional
In a large saucepan, saute onions in butter for 3 minutes. Add mushrooms (and more butter if necessary), saute an additional 3 minutes. Stir in flour, pepper, and salt; gradually add milk and broth. Bring to a boil; cook and stir for 2 minutes or until thickened.
Add parsley and nutmeg if desired. Top individual servings with a dollop of sour cream, if desired.
(Sorry for lack of pictures... this was when we were short on camera battery.) :)