In a medium bowl, combine mayonnaise, ketchup, mustard, vinegar, pickle juice, Worcestershire sauce, and minced onion.
1/2 cup mayonnaise, 1 tablespoons ketchup, 1/2 tablespoon mustard, 1 tablespoon Finely minced white onion, 1/2 tablespoon white vinegar, 3/4 teaspoon dill pickle juice, 1 teaspoon granulated sugar, 1/2 tbsp Worcestershire sauce, 1/4 teaspoon paprika, 1 teaspoon garlic powder, 1/2 teaspoon mustard powder, 1/4 teaspoon salt, 3/4 teaspoon black pepper