3/4 c  Sugar;
(can be sugar subtitute)
1/3 c  Cocoa;
4 ts Cornstarch;
1/2 c  Evaporated skim milk
1 ts Vanilla

In a small saucepan stir together the sugar, cocoa, cornstarch and
evaporated skim milk. Cook and stir constantly until sauce is bubbly
and thick. Cook and stir two minutes more. Remove from heat and stir
in 1 tsp. vanilla. (For sugar-free sauce skip sugar at the start and
stir in NutraSweet spoon on at the end with the vanilla.)