Low Fat Buttermilk Ranch Dressing

I decided to try to make my own salad dressing and K informed me I am no longer allowed to buy dressing because this was excellent. In his words it was "way better than the bottled stuff"

Low fat Buttermilk Ranch Dressing-from Allrecipes.com
2/3 cup low fat sour cream
1 1/3 cups buttermilk
2/3 cups low fat mayo
1 tsp garlic powder
1 tsp onion powder
1 tsp dried chives
1 tsp dried parsley
1/2 tsp salt
1/4 tsp pepper
**the recipe also calls for dill

Whisk all ingredients together. Cover and refrigerate for at least 30 mins before serving.