Place all of the ingredients in a blender and puree until smooth. Taste and add more vinegar if you want it tangier, or more sugar if you want it sweeter. Chill for at least 2 hours before serving.Store in an airtight container in the fridge. Will keep up to 2 weeks. Makes about 2 1/2 cups.
Notes
For a low calorie version, use low fat mayonnaise and substitute something like Swerve Granular Sweetener for the sugar.