Low-cal Homemade Blue Cheese Dressing

1/2 c low-fat mayonnaise
3/4 c low-fat blue cheese (I've only seen it in the already crumbled form)
1/2 c fat free sour cream
1/4 c fat free cream cheese
Garlic, minced very fine
Black Pepper

In a food processor add the cream cheese, sour cream and mayo and garlic and 1/4 c of the blue cheese. Process. Pour into a bowl and fold in the rest of the cheese and add pepper. Refrigerate until served.