1 large egg
2 T fresh lemon juice
¼ cup onions chopped
¼ cup green onions chopped
¼ cup celery chopped
1 T horseradish prepared
3 T whole grain mustard
3 T mustard
3 T ketchup
3 T parsley chopped
salt and pepper to taste
cayenne pepper to taste
½ cup olive oil
½ cup vegetable oil
(Makes 2 cups)
Combine the first 10 ingredients in a food processor with a metal blade and process until smooth. Season with salt, cayenne, and pepper. While the machine is running, slowly add the oil, a little at a time, until thick. Taste and add more seasoning if needed. Cover and refrigerate for at least one hour before serving. Can be stored in the refrigerator for 3-4 days.