This recipe is similar to a boiled icing recipe I have seen in the past. I am still a bit squeamish at the raw egg white, although I know plenty of people have eaten this icing to no ill effect.
1 cup sugar
1 egg white
1/4 tsp cream of tartar
1/2 c boiling water
Beat above at hight speed until stiff. Add vanilla. Takes 10-15 min.