While this dip is great with tomatoes, it is also delicious with cut up cucumber, carrots, and crackers. Thin it out with a little water and it would also make a great salad dressing. If you're not a fan of blue cheese, goat cheese would make a great substitute.
Combine all ingredients in the food processor and process until smooth.
Serve with cut up tomatoes, crackers, or other vegetables of your choice.