Sauce for seafood salads

A remoulade sauce always is a good base for any salad sandwich. Looks complicated but is super simple sauce to make.

Remoulade Sauce
Ingredients:
1/4 cup ketchup
1/4 cup prepared horseradish
1/4 cup Creole mustard
2 tablespoons white vinegar
2 tablespoons prepared yellow mustard
juice of 1/2 lemon
1/2 cup finely chopped green onion
1/4 cup finely chopped celery
1/4 cup finely chopped parsley
1 garlic clove, minced
1 tablespoon paprika
1/8 teaspoon cayenne pepper
1/4 teaspoon salt
dash Tabasco
1 egg
3/4 cup vegetable oil
Preparation:
Put ketchup, horseradish, Creole and prepared mustards, vinegar, lemon juice, onion, celery, parsley, garlic, paprika, cayenne, salt, Tabasco and egg into blender container or food processor. Cover and mix at high speed until well blended. Remove cover and gradually add oil in a slow steady stream. Sauce will thicken to a pourable, creamy consistency. Store in covered container in refrigerator up to one week.