This is the recipezaar version and it cannot be improved upon. I was going to write a substitution if you have fresh parsley but – what the fuck kind of ranch dressing would it be with fresh herbs?
1 cup buttermilk
1 cup mayonnaise
1 cup light sour cream
1 teaspoon dried parsley flakes
1/4 teaspoon pepper
1 tablespoon lemon juice
1 tablespoon vinegar
1 1/2 teaspoons garlic salt
2 1/2 teaspoons onion powder
Whisk all the ingrediants in large bowl and chill. Makes three cups – a lot.