Combine 1 cup full-fat mayonnaise, ¼ cup sour cream, and ¼ cup buttermilk in a medium mixing bowl. Stir well using a whisk.
Add 1 tablespoon dried parsley, ½ teaspoon dried dill weed, ½ teaspoon black pepper powder, ½ teaspoon onion powder, ½ teaspoon garlic powder, 2 teaspoon smoked paprika, 1 teaspoon cayenne pepper powder, and ½ teaspoon salt, and mix well with a whisk.
Check for salt and add more if needed. Let the mixture sit in the fridge for about 30 minutes before serving.