Step 1
Blend celery, green onion, mayonnaise, horseradish, parsley, Creole mustard, ketchup, Worcestershire sauce, Dijon mustard, vinegar, hot pepper sauce, lemon, garlic, paprika, salt, and bay leaf in a food processor, adding ingredients gradually with motor running, until lemon rind is finely chopped and sauce is well-blended. Chill sauce in refrigerator for at least 2 hours.n