Seven Minute Icing - cooking recipe

Ingredients

7/8 c. sugar
1 egg white
3 Tbsp. cold water
1 tsp. vanilla
1 tsp. baking powder
6 large marshmallows

Preparation

Beat sugar, egg white and cold water to a peak in double boiler.
Remove from heat.
Add vanilla, baking powder and marshmallows.
Whip and put on cake.
Reserve some; add food coloring and swirl on cake.