Original Thousand Island dressing rescipe is a creamy, tangy classic made by blending mayonnaise, ketchup, and finely chopped pickles or relish. Hard-boiled eggs, minced onion, and green olives add texture and depth, while lemon juice or vinegar brings brightness. A touch of paprika, salt, and black pepper balances the flavors. Traditionally mixed until smooth yet slightly chunky, this dressing is perfect for salads, sandwiches, burgers, and as a dip for seafood or fries.