Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/3  cups          powdered sugar
   2      tablespoons   skim milk
   1      teaspoon      vanilla extract

Preparation:

Pour sugar into a small bowl. Heat milk slightly in the microwave. Mix the milk into the sugar, stirring until smooth. Add the vanilla; stir until well blended. Spoon onto cinnamon rolls or muffins. The whole batch of frosting is fat free. Variation: Cold lemon juice can be used in place of the milk for a more tangy frosting.