Boiled White Frosting

1 cup sugar
1/2 cup water
1 egg white
1/2 cup all-purpose flour
1/2 tsp vanilla

Dissolve sugar in water, bring to boil.
Beat egg white until stiff, add a TBS of sugar/water syrup,
beating constantly. Add 4 TBS more syrup this way,
then boil syrup until almost hard crack stage.
Add to egg white, beating continuously.
Beat until almost stiff.