Ranch Dressing

Why I Love This Recipe
I've searched long and hard for a delicious "restaurant quality" ranch dressing recipe, and finally come up with (based on a version I found online somewhere) the following:
If you want to make a "healthier" version, I recommend using light sour cream (and still use real mayo). 've tried using light sour cream (or non-fat sour cream) along with light mayo, and it's not as good.
Ingredients You'll Need
1 cup real mayonnaise
1 cup regular sour cream
1 cup 2% buttermilk
1 1/2 to 2 teaspoon garlic powder
2 teaspoon minced green onion
1 1/2 teaspoon salt
1 t ground pepper
dash of cayenne pepper
2 teaspoon chives (the top part of the green onion)
some parsley (for color, this is optional)
Directions
Stir together all ingredients and refrigerate at least two hours before serving to blend flavors.