Jamie’s Bleu Cheese Dressing

3/4 cup sour cream
1-1/4 cups mayonnaise
4 oz. crumbled Blue Cheese
1/4 tsp. dry mustard
1/2 tsp. black pepper
1/2 tsp. salt
1/3 tsp. garlic powder
1 tsp. Worcestershire sauce

If you prefer more sour cream taste than mayonnaise taste (which I do), just reverse the amounts of mayonnaise and sour cream.  I never seem to have dry mustard on hand, either, so I just add a small spoonful of prepared mustard.