1 c. low - fat buttermilk
1/2 c. plain low - fat yogurt
1 tbsp. light mayonnaise
1 tbsp. parsley
2 med. cloves garlic, chopped
1/4 tsp. onion powder
1/2 tsp. dried basil
1/4 tsp. salt
1/4 tsp. celery seed
1/4 tsp. pepper
1/4 tsp. white vinegar