Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      envelope      unflavored gelatin
     1/4  cup           water
   1 3/4  cups          double-strength coffee
     1/3  cup           sugar
   1      teaspoon      angostura aromatic bitters
   1      thin          lemon slices -- (for garnish)

1. Soften gelatin in water; place over low heat and stir until gelatin is dissolved. 2. Stir gelatin into coffee; stir in sugar until sugar is dissolved. 3. Stir in Angostura. 4. Pour mixture into serving dishes; chill until firm. 5. Serve mold garnished with thin slices of lemon, or cube gelatin and serve in dessert dishes with thin lemon slices.