Original Thousand Island dressing is a creamy, tangy condiment perfect for salads and sandwiches. To make it, combine ½ cup mayonnaise, 2 tablespoons ketchup, 1 tablespoon finely chopped pickles or relish, 1 teaspoon white vinegar, 1 teaspoon finely minced onion, and a pinch of salt and pepper. Mix well until smooth and chilled for at least an hour to let flavors meld. Optional additions include a dash of hot sauce or paprika for extra zest. Serve cold.