3/4 cup vegetable oil |
1/2 cup chopped green onion |
1/2 cup chopped yellow onion |
1/4 cup fresh lemon juice |
1/4 cup chopped celery |
3 tablespoons creole mustard |
3 tablespoons ketchup |
3 tablespoons chopped fresh parsley leaves |
2 tablespoons chopped garlic |
2 tablespoons prepared horseradish |
1 teaspoon salt |
1/4 teaspoon cayenne |
1/4 teaspoon fresh ground black pepper |