2 tsp. instant minced onion
1/8 tsp. garlic powder
1/4 tsp. salt
1/2 tsp. MSG (opt.)
1 tbsp. parsley flakes
1 c. mayonnaise
1 c. buttermilk

Shake spices in a jar until well mixed. Then add mayonnaise and buttermilk. Shake until well blended.