Combine mayo, buttermilk, and the ranch seasoning mix in a medium-sized bowl.
Add garlic powder, onion powder, and dill weed.
Mix until everything is evenly blended.
Taste and adjust the seasoning to your liking.
You might want a little more garlic or dill!
Cover the bowl and refrigerate for at least 30 minutes.
This strengthens the flavor profile.
Stir before serving, and enjoy with your favorite pizza or salad.