Ingredients

• 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

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Instructions

1. Mix together the mayonnaise, sour cream, mustard, ketchup, Worcestershire sauce, onion and salt and pepper. Refrigerate until ready to toss with potatoes.