Instructions

  1. Spread 1 teaspoon butter on each slice of bread, being sure to cover each completely.
  2. Cut each buttered slice in half crosswise or into 2 (4-by-2-inch) pieces.
  3. Top each piece of bread with one-eighth of the herring, placing the fish smooth-side up.
  4. Top each with several onion rings and 1 tomato wedge.
  5. Garnish with watercress or parsley.