Add the vinegar, Worcestershire sauce, lemon juice, garlic, salt, and pepper to the bowl. Whisk again until all ingredients are thoroughly combined.
Gently fold in the crumbled blue cheese until evenly distributed. For a smoother texture, you can mash the blue cheese with a fork before adding it to the mixture.
If you prefer a thinner dressing, gradually add more buttermilk until you reach your desired consistency. Alternatively, for a thicker dressing, let it rest for a couple of hours in the fridge.
Cover the bowl and refrigerate the dressing for at least 2 hours (or overnight) to allow the flavors to meld together. Before serving, taste and adjust the seasonings as needed.
When making bleu cheese dressing, remember that the resting time is essential for flavor development. Allowing the dressing to chill not only enhances the taste but also thickens the mixture.
Feel free to experiment with different types of blue cheese for varied flavors and consider adding hot sauce for a spicy kick. Always taste your dressing before serving to verify the seasonings are just right!