Oysters Rockefeller

24
oysters on the half shell
1/2 pound
butter
1/3 cup
finely chopped parsley
1/4 cup
finely chopped celery
1/4 cup
finely chopped shallots
1/2 small
garlic clove, minced
2 cups
chopped watercress
1/3 cup
chopped fennel
1/3 cup
fine soft bread crumbs
1/4 cup
anisette or Pernod
  Salt to taste

Preheat oven to 450°F (230°C).  Fill 4 tin pie plates with rock salt (optional) and arrange 6 oysters on the half shell on each.  In a skillet heat the butter, add the parsley, celery, shallots and garlic and cook 3 minutes. Add the watercress and fennel and cook until the watercress wilts, about 1 minute.  Pour the mixture into the container of a food processor and add the remaining ingredients. Blend until the sauce is thoroughly pureed.  Place 1 tablespoon of the sauce on each oyster and spread to the rim of the shell. Bake the oysters just until the sauce bubbles, about 4 minutes.