Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     3/4  cup           sugar
     1/2  cup           water
     1/2  teaspoon      fresh lemon juice
     1/3  cup           unsweetened cocoa powder -- plus
   1      tablespoon    unsweetened cocoa powder
   1      tablespoon    butter
     1/2  teaspoon      vanilla extract

Preparation:

1. In a small saucepan, combine the sugar, water and lemon juice. Cook over medium heat, stirring with a wooden spoon until the sugar dissolves. Increase the heat to high and bring the syrup to a boil. Boil for 1 minute. 2. Remove the pan from the heat. Whisk in the cocoa powder and butter until blended and slightly thickened. Cool to room temperature. Strain into a serving bowl and stir in the vanilla. Cover with plastic wrap and refrigerate until ready to serve. The sauce will keep up to 2 weeks in the refrigerator. Makes about 1 cup sauce.