1 c. mayonnaise
1 c. buttermilk
2 tbsp. finely chopped green onion, tops only
1/4 tsp. onion powder
2 tsp. minced parsley
1/4 tsp. garlic powder OR 1/2 to 1 garlic clove, finely minced
1/4 tsp. paprika
1/8 tsp. cayenne pepper
1/4 tsp. salt
1/4 tsp. black pepper

Combine all ingredients in a small bowl. Refrigerate. Makes 2 cups.