Light strawberry freeze

1 egg white
 1/2 cup powdered (icing) sugar
 1 pint very ripe strawberries
 1/2 t vanilla
 
 Beat egg white till frothy.  Beat in sugar.  Add vanilla and stawberries, and
 beat at high speed until light and greatly expanded.  Freeze.
 
 Best used within a few days, as the texture changes after that.
 
 This is extremely light and refreshing.  From a small amount of ingredients,
 you get an enormous amount of freeze.  Caution:  the stuff splatters like
 crazy while you are beating it up.  You might want to cover your mixer with
 a towel or something during the process.  Also, be sure to use a large bowl.