In a separate bowl, whisk together the yogurt, mayonnaise, Parmesan, lemon juice, chives, garlic, cayenne. Taste and add salt, and pepper as needed. ¼ cup plain yogurt, ¼ cup mayonnaise, 2 tablespoons Parmesan cheese, 2 tablespoons fresh lemon juice, 1 tablespoon chopped chives, 1 small garlic clove, ⅛ teaspoon cayenne pepper, salt and pepper to taste