Mix the base: In a small bowl, combine ketchup and prepared horseradish. Adjust horseradish depending on your desired spiciness.
Add flavor boosters: Stir in Worcestershire sauce, lemon juice, hot sauce (if using), and a pinch of salt.
Optional add-ins: Add paprika or parsley for extra depth and presentation.
Chill (optional): For best flavor, refrigerate 5–10 minutes before serving, though you can use it immediately.
Serve: Perfect as a dip for shrimp, crab, oysters, fries, or any dish craving a zesty punch.