Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         powdered sugar
     1/2  cup           cocoa
     1/4  cup           milk
   1      stick         margarine
     1/2  teaspoon      vanilla

Preparation:

Mix sugar and cocoa together in large bowl, pour milk in sugar mixture and set margarine on top. Microwave 2.5 minutes on high. Mix well and add vanilla. Pour on aluminum foil covered plate, put in fridge for 30 minutes. If you want an ice cream topping, add more milk when cooking.