- 1/2 cup mayonnaise
- 1/2 cup sour cream
- 2 teaspoons prepared mustard
- 1 tablespoon ketchup
- 1 1/2 teaspoons Worcestershire sauce
- 1/2 cup diced onion (optional)
- salt and pepper to taste
- Mix together the mayonnaise, sour cream, mustard, ketchup, Worcestershire sauce, onion and salt and pepper. Refrigerate until ready to toss with potatoes.