Step 1

Place blue cheese and buttermilk into a bowl and stir together with a fork. Use the fork to break up any large chunks of cheese by pressing it against the side of the bowl. If you prefer a smoother dressing, mix together in a blender.

Step 2

Add the sour cream, mayonnaise, white wine vinegar, garlic powder and sugar. Stir until well combined.

Step 3

Season with sea salt and freshly ground black pepper, to taste. Chill until ready to serve.