Basic Green Sauce

Directions

1. 1
   Cook and stir onions in oil in a 3-quart saucepan until tender.
2. 2
   Stir in remaining ingredients except broth and sour cream.
3. 3
   Cover and cook over medium heat for 5 minutes, stirring occasionally.
4. 4
   Place mixture in food processor workbowl fitted with steel blade or in a blender container; cover and process until smooth, about 1 minute.
5. 5
   Return mixture to saucepan; stir in broth.
6. 6
   Heat to boiling; reduce heat.
7. 7
   Simmer uncovered for 10 minutes.
8. 8
   Stir in sour cream.
9. 9
   Cover and refrigerate any remaining sauce.
10. 10
    Makes about 4 cups of sauce.