Ranch dressing mix

1 cup buttermilk + 1 cup mayonnaise (or half cup of each)

Dried parsley, garlic powder, onion powder, dried dill, onion flakes, dried chives, salt, pepper (all to taste). 

Instructions: 

When ready to mix, add 1 cup of milk, 1 cup of mayo, and seasonings/herbs above and whisk together until smooth. Refrigerate for at least an hour.