Fluffy Frosting - cooking recipe

Ingredients

1 2/3 c. sugar
1/4 c. water
1 tsp. vanilla
1/2 tsp. cream of tartar (optional)
4 egg whites

Preparation

Mix the sugar with 1/4 cup water (or a little more). Cook on low heat until it spins a thread.
Beat the egg whites until stiff and fluffy.
Pour syrup over egg whites in a thin stream, beating all the time. Beat until cool. Add the vanilla and cream of tartar (optional).