Sounds odd, but really works.  Good.

Ingredients:

• 1¼ c  mayonnaise
• 5 Tab  ketchup
• ¼ c  Minced onion
• 2½ Tab  red wine vinegar
• 2½ Tab sugar
• 1½ tsp  Dijon mustard
• ¾ tsp  paprika
• ¾ tsp  salt
• ½ tsp  celery salt
• 1/8 tsp  pepper
• 1¼ c  vegetable oil
• ¾ c  crumbled  Roquefort

Instructions:

1. Combine mayonnaise, ketchup, onion, vinegar, sugar, mustard, paprika, salt, celery salt, pepper.
2. Add oil in a stream, whisking.
3. Whisk until it is combined well.
4. Add Roquefort, stirring gently.
5. Chill

Serves: Makes about 3½ cups

Notes:

• Mayonnaise or Miracle Whip – both work
• I used dried minced onions

Source: The Jefferson Avenue Boarding House via (the now deceased) Gourmet Magazine