Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   4      squares       unsweetened chocolate -- cut in small pieces
     1/2  cup           strong coffee -- cold
   1      cup           sugar
     1/2  cup           milk
   3                    egg yolks -- lightly beaten
   1      teaspoon      angostura aromatic bitters
   3                    egg whites -- stiffly beaten
   1      teaspoon      pure vanilla extract
                        whipped cream -- (optional)

Preparation:

1. Melt chocolate and coffee in saucepan, stirring over low heat until smooth and thick; stir in 3/4 cup sugar. 2. Add milk to lightly beaten egg yolks; stir into hot mixture. 3. Add Angostura; continue stirring over low heat until sugar is dissolved. 4. Fold remaining sugar into stiffly beaten egg whites; add vanilla and fold hot mixture into egg whites. 5. Pour into serving dish or individual dishes; chill in refrigerator. Serve plain or with whipped cream.