Oysters Rockefeller

Name: Oysters Rockefeller
Cuisine: American
Ingredients: 1 pound spinach, washed and stemmed; 4 tablespoons unsalted butter; 3 scallions, chopped; 2 large shallots, minced; 1 clove garlic, minced; 1 cup chopped fresh parsley; 2 tablespoons dry vermouth; 1 tablespoon heavy cream; 1 tablespoon fresh lemon juice; 1 tablespoon Herbsaint or Pernod; 1 tablespoon Herbsaint or Pernod; Few dashes of hot sauce; ¼ cup fresh bread crumbs (optional); Rock salt or kosher salt, for the oyster pans; Rock salt or kosher salt, for the oyster pans; Rock salt or kosher salt, for the oyster pans; 2 dozen oysters, shucked and left in the half shell