|Skim milk||1⁄2 Cup (8 tbs)|
|Evaporated skim milk||1⁄2 Cup (8 tbs)|
|Semi sweet chocolate square||1 , grated|
|Vanilla extract||1⁄2 Teaspoon|
In a small heavy saucepan, combine the sugar and cornstarch and slowly add the skim milk and evaporated skim milk.
Blend until smooth, then set over moderate heat and cook, stirring constantly, for 3 to 5 minutes or until thickened and smooth.
Transfer to a small bowl, stir in the chocolate and vanilla extract, and stir until the chocolate is melted.
Cover and cool before serving.