1/2 c  Granulated sugar

    1/4 c  Unsweetened cocoa powder

           Or European-style cocoa
      1 tb (plus 1 tsp) cornstarch

    1/2 c  Evaporated skim milk

      2 ts Vanilla extract

           Assorted fresh fruit
           Unfrosted cake or frozen
           Nonfat yogurt, optional
  In a small saucepan, combine sugar, cocoa and cornstarch; stir in
  evaporated milk.  Cook over low heat 3 minutes, or until mixture boils,
  stirring constantly with whisk.  Continue cooking 1-2 minutes longer, or
  until sauce is thickened and smooth, stirring constantly.
  Remove from heat; stir in vanilla.  Serve warm or cold with fresh fruit,
  cake, or nonfat frozen yogurt.  Cover and refrigerate leftover sauce.