- 2 tablespoons Creole or whole-grain mustard
- 2 tablespoons chopped green onion tops, green part only
- 1 1/2 teaspoons prepared horseradish
- 1 teaspoon chopped garlic
- 1 teaspoon yellow mustard
- 1 teaspoon hot sauce
- 1/2 teaspoon Worcestershire sauce
- 1 tablespoon fresh lemon juice
- 1 large egg*
- 1/2 teaspoon salt
- 1/4 teaspoon ground black pepper
- 1/2 cup plus 2 tablespoons vegetable oil
- 2 tablespoons chopped fresh parsley leaves
- 1 to 2 hard boiled eggs, chopped
- 1 1/2 tablespoons drained and coarsely chopped capers
- In the bowl of a food processor or blender, add the Creole mustard, green onions, horseradish, garlic, mustard, hot sauce, Worcestershire, lemon juice, egg, salt, and pepper. Process until smooth, about 30 seconds.
- With the motor running, slowly pour the vegetable oil into the blender or food processor in a slow, steady stream. Add the parsley and pulse to combine. Transfer to a container, fold in the chopped eggs and capers, cover, and refrigerate for 1 hour before using. This sauce will keep, refrigerated, for up to 24 hours.
- *RAW EGG WARNING The American Egg Board states: "There have been warnings against consuming raw or lightly cooked eggs on the grounds that the egg may be contaminated with Salmonella, a bacteria responsible for a type of foodborne illness. Healthy people need to remember that there is a very small risk and treat eggs and other raw animal foods accordingly. Use only properly refrigerated, clean, sound-shelled, fresh, grade AA or A eggs. Avoid mixing yolks and whites with the shellÖ"