Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/2  cup           instant dry milk
     1/3  cup           cold water
   2      tablespoons   lemon juice
   2      tablespoons   sugar
     1/4  cup           dry sugar substitute (equal
                        to 1/4 c sugar) -- optional
     1/2  teaspoon      vanilla

Preparation:

Combine the dry milk and water and refrigerate for 30 minutes. Beat at high speed for 4 minutes. Add lemon juice to whipped milk and beat at high speed for 4 minutes. Stir the sugar an sugar substitute together an add gradually to the whipped milk while it is being beaten. add vanilla to whipped topping and refrigerate until used.