1/2 pt. sour cream
1/4 tsp. salt
1 tsp. low calorie sweetener
1/2 tsp. dry mustard
Few grains celery salt
2 tbsp. white vinegar

Whip all ingredients together except vinegar. Add vinegar only after thoroughly blended. 1 1/2 cups or 18 tablespoons - 488 calories. 1 tablespoon = 27 calories.