Start by placing the Gorgonzola cheese in a small mixing bowl.
Mash it with a fork until it has a slightly chunky consistency.
Add the sour cream to the bowl and mix it in thoroughly.
Next, pour in the buttermilk and mayonnaise, stirring until the mixture is well combined.
Add the white wine vinegar and Worcestershire sauce to the bowl.
Mix well to ensure the ingredients are fully integrated.
Finish by adding the black pepper and giving the dressing one last stir.