Bleu Cheese and/or Gorgonzola Cheese Dressing

(3) 4-oz packages of bleu cheese or Gorgonzola cheese dressing
1/2 cup mayonnaise
1/2 cup sour cream
1/2 cup buttermilk
1-2 tbsp minced garlic
1-2 tbsp prepared horseradish sauce
1 tbsp dried minced onion
pepper

In a blender, add all ingredients except (2) packages of the crumbled cheese. Blend until everything is incorporated. Pour into a container that has a lid. Add the remaining cheese and mix well. Refrigerate over night.