Seven Minute Frosting - cooking recipe

Ingredients

1 egg white (unbeaten)
7/8 c. granulated sugar
3 Tbsp. cold water
1/2 tsp. vanilla
1/4 tsp. baking powder

Preparation

Put first 3 ingredients in top of double boiler.
Place over boiling water; beat with beater for 7 minutes or until thick. Take from fire, add flavoring.
Beat until thick and nearly cold; add baking powder.
Continue to beat until thick enough to spread on cake without running.
Sufficient for a loaf or 2-layer cake.